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Finding the Fourth Proportional to 828,344.40, 1,241,641.80 and 472,592.40

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Solution

The fourth proportional to 828,344.40, 1,241,641.80 and 472,592.40 is: 708,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,344.40 : 1,241,641.80 = 472,592.40 : x
  2. Step 2: Convert to fraction form
    828,344.40/1,241,641.80 = 472,592.40/x
  3. Step 3: Cross multiply
    828,344.40x = 1,241,641.80 × 472,592.40
  4. Step 4: Simplify right side
    828,344.40x = 586,790,478,202.32
  5. Step 5: Solve for x
    x = 586,790,478,202.32/828,344.40
  6. Step 6: Final answer
    x = 708,389.50

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Double scale
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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.