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Finding the Fourth Proportional to 563,117.16, 777,101.64 and 308,468.28

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Solution

The fourth proportional to 563,117.16, 777,101.64 and 308,468.28 is: 425,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,117.16 : 777,101.64 = 308,468.28 : x
  2. Step 2: Convert to fraction form
    563,117.16/777,101.64 = 308,468.28/x
  3. Step 3: Cross multiply
    563,117.16x = 777,101.64 × 308,468.28
  4. Step 4: Simplify right side
    563,117.16x = 239,711,206,275.98
  5. Step 5: Solve for x
    x = 239,711,206,275.98/563,117.16
  6. Step 6: Final answer
    x = 425,686.20

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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.