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Finding the Fourth Proportional to 592,772.50, 817,802.79 and 388,935.90

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Solution

The fourth proportional to 592,772.50, 817,802.79 and 388,935.90 is: 536,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,772.50 : 817,802.79 = 388,935.90 : x
  2. Step 2: Convert to fraction form
    592,772.50/817,802.79 = 388,935.90/x
  3. Step 3: Cross multiply
    592,772.50x = 817,802.79 × 388,935.90
  4. Step 4: Simplify right side
    592,772.50x = 318,072,864,151.16
  5. Step 5: Solve for x
    x = 318,072,864,151.16/592,772.50
  6. Step 6: Final answer
    x = 536,585.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.