Home / 679,737.38-938,016.10-373,812.81

Finding the Fourth Proportional to 679,737.38, 938,016.10 and 373,812.81

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Solution

The fourth proportional to 679,737.38, 938,016.10 and 373,812.81 is: 515,849.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,737.38 : 938,016.10 = 373,812.81 : x
  2. Step 2: Convert to fraction form
    679,737.38/938,016.10 = 373,812.81/x
  3. Step 3: Cross multiply
    679,737.38x = 938,016.10 × 373,812.81
  4. Step 4: Simplify right side
    679,737.38x = 350,642,429,476.16
  5. Step 5: Solve for x
    x = 350,642,429,476.16/679,737.38
  6. Step 6: Final answer
    x = 515,849.86

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1.5x scale

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.