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Finding the Fourth Proportional to 711,651.26, 981,981.74 and 425,110.52

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Solution

The fourth proportional to 711,651.26, 981,981.74 and 425,110.52 is: 586,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,651.26 : 981,981.74 = 425,110.52 : x
  2. Step 2: Convert to fraction form
    711,651.26/981,981.74 = 425,110.52/x
  3. Step 3: Cross multiply
    711,651.26x = 981,981.74 × 425,110.52
  4. Step 4: Simplify right side
    711,651.26x = 417,450,768,121.91
  5. Step 5: Solve for x
    x = 417,450,768,121.91/711,651.26
  6. Step 6: Final answer
    x = 586,594.57

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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.