Home / 981,818.20-1,472,435.70-382,434.40

Finding the Fourth Proportional to 981,818.20, 1,472,435.70 and 382,434.40

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Solution

The fourth proportional to 981,818.20, 1,472,435.70 and 382,434.40 is: 573,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,818.20 : 1,472,435.70 = 382,434.40 : x
  2. Step 2: Convert to fraction form
    981,818.20/1,472,435.70 = 382,434.40/x
  3. Step 3: Cross multiply
    981,818.20x = 1,472,435.70 × 382,434.40
  4. Step 4: Simplify right side
    981,818.20x = 563,110,063,468.08
  5. Step 5: Solve for x
    x = 563,110,063,468.08/981,818.20
  6. Step 6: Final answer
    x = 573,538.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.