Home / 828,229.40-1,242,344.10-355,837.40

Finding the Fourth Proportional to 828,229.40, 1,242,344.10 and 355,837.40

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Solution

The fourth proportional to 828,229.40, 1,242,344.10 and 355,837.40 is: 533,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,229.40 : 1,242,344.10 = 355,837.40 : x
  2. Step 2: Convert to fraction form
    828,229.40/1,242,344.10 = 355,837.40/x
  3. Step 3: Cross multiply
    828,229.40x = 1,242,344.10 × 355,837.40
  4. Step 4: Simplify right side
    828,229.40x = 442,072,494,449.34
  5. Step 5: Solve for x
    x = 442,072,494,449.34/828,229.40
  6. Step 6: Final answer
    x = 533,756.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.