Home / 500,320.43-690,442.65-270,877.91

Finding the Fourth Proportional to 500,320.43, 690,442.65 and 270,877.91

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Solution

The fourth proportional to 500,320.43, 690,442.65 and 270,877.91 is: 373,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,320.43 : 690,442.65 = 270,877.91 : x
  2. Step 2: Convert to fraction form
    500,320.43/690,442.65 = 270,877.91/x
  3. Step 3: Cross multiply
    500,320.43x = 690,442.65 × 270,877.91
  4. Step 4: Simplify right side
    500,320.43x = 187,025,662,006.86
  5. Step 5: Solve for x
    x = 187,025,662,006.86/500,320.43
  6. Step 6: Final answer
    x = 373,811.76

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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.