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Finding the Fourth Proportional to 902,565.10, 1,354,366.05 and 342,001.90

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Solution

The fourth proportional to 902,565.10, 1,354,366.05 and 342,001.90 is: 513,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,565.10 : 1,354,366.05 = 342,001.90 : x
  2. Step 2: Convert to fraction form
    902,565.10/1,354,366.05 = 342,001.90/x
  3. Step 3: Cross multiply
    902,565.10x = 1,354,366.05 × 342,001.90
  4. Step 4: Simplify right side
    902,565.10x = 463,195,762,395.50
  5. Step 5: Solve for x
    x = 463,195,762,395.50/902,565.10
  6. Step 6: Final answer
    x = 513,199.28

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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.