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Finding the Fourth Proportional to 517,862.32, 776,002.20 and 348,757.36

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Solution

The fourth proportional to 517,862.32, 776,002.20 and 348,757.36 is: 522,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,862.32 : 776,002.20 = 348,757.36 : x
  2. Step 2: Convert to fraction form
    517,862.32/776,002.20 = 348,757.36/x
  3. Step 3: Cross multiply
    517,862.32x = 776,002.20 × 348,757.36
  4. Step 4: Simplify right side
    517,862.32x = 270,636,478,626.19
  5. Step 5: Solve for x
    x = 270,636,478,626.19/517,862.32
  6. Step 6: Final answer
    x = 522,603.15

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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.