Home / 689,269.06-951,182.85-387,463.06

Finding the Fourth Proportional to 689,269.06, 951,182.85 and 387,463.06

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Solution

The fourth proportional to 689,269.06, 951,182.85 and 387,463.06 is: 534,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,269.06 : 951,182.85 = 387,463.06 : x
  2. Step 2: Convert to fraction form
    689,269.06/951,182.85 = 387,463.06/x
  3. Step 3: Cross multiply
    689,269.06x = 951,182.85 × 387,463.06
  4. Step 4: Simplify right side
    689,269.06x = 368,548,218,143.01
  5. Step 5: Solve for x
    x = 368,548,218,143.01/689,269.06
  6. Step 6: Final answer
    x = 534,694.27

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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.