Home / 828,277.10-1,242,415.65-355,010.30

Finding the Fourth Proportional to 828,277.10, 1,242,415.65 and 355,010.30

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Solution

The fourth proportional to 828,277.10, 1,242,415.65 and 355,010.30 is: 532,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,277.10 : 1,242,415.65 = 355,010.30 : x
  2. Step 2: Convert to fraction form
    828,277.10/1,242,415.65 = 355,010.30/x
  3. Step 3: Cross multiply
    828,277.10x = 1,242,415.65 × 355,010.30
  4. Step 4: Simplify right side
    828,277.10x = 441,070,352,631.20
  5. Step 5: Solve for x
    x = 441,070,352,631.20/828,277.10
  6. Step 6: Final answer
    x = 532,515.45

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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.