Home / 981,343.20-1,354,397.04-551,658.72

Finding the Fourth Proportional to 981,343.20, 1,354,397.04 and 551,658.72

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Solution

The fourth proportional to 981,343.20, 1,354,397.04 and 551,658.72 is: 761,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,343.20 : 1,354,397.04 = 551,658.72 : x
  2. Step 2: Convert to fraction form
    981,343.20/1,354,397.04 = 551,658.72/x
  3. Step 3: Cross multiply
    981,343.20x = 1,354,397.04 × 551,658.72
  4. Step 4: Simplify right side
    981,343.20x = 747,164,937,458.19
  5. Step 5: Solve for x
    x = 747,164,937,458.19/981,343.20
  6. Step 6: Final answer
    x = 761,369.66

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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.