Home / 689,737.86-951,829.08-387,931.86

Finding the Fourth Proportional to 689,737.86, 951,829.08 and 387,931.86

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Solution

The fourth proportional to 689,737.86, 951,829.08 and 387,931.86 is: 535,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,737.86 : 951,829.08 = 387,931.86 : x
  2. Step 2: Convert to fraction form
    689,737.86/951,829.08 = 387,931.86/x
  3. Step 3: Cross multiply
    689,737.86x = 951,829.08 × 387,931.86
  4. Step 4: Simplify right side
    689,737.86x = 369,244,825,406.49
  5. Step 5: Solve for x
    x = 369,244,825,406.49/689,737.86
  6. Step 6: Final answer
    x = 535,340.81

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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.