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Finding the Fourth Proportional to 981,819, 1,472,894.57 and 502,255.01

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Solution

The fourth proportional to 981,819, 1,472,894.57 and 502,255.01 is: 753,467.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,819 : 1,472,894.57 = 502,255.01 : x
  2. Step 2: Convert to fraction form
    981,819/1,472,894.57 = 502,255.01/x
  3. Step 3: Cross multiply
    981,819x = 1,472,894.57 × 502,255.01
  4. Step 4: Simplify right side
    981,819x = 739,768,681,922.17
  5. Step 5: Solve for x
    x = 739,768,681,922.17/981,819
  6. Step 6: Final answer
    x = 753,467.47

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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.