Home / 563,123.16-777,109.92-308,474.28

Finding the Fourth Proportional to 563,123.16, 777,109.92 and 308,474.28

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Solution

The fourth proportional to 563,123.16, 777,109.92 and 308,474.28 is: 425,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,123.16 : 777,109.92 = 308,474.28 : x
  2. Step 2: Convert to fraction form
    563,123.16/777,109.92 = 308,474.28/x
  3. Step 3: Cross multiply
    563,123.16x = 777,109.92 × 308,474.28
  4. Step 4: Simplify right side
    563,123.16x = 239,718,423,052.86
  5. Step 5: Solve for x
    x = 239,718,423,052.86/563,123.16
  6. Step 6: Final answer
    x = 425,694.48

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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.