Home / 1,320,785.10-1,981,426.52-500,369.47

Finding the Fourth Proportional to 1,320,785.10, 1,981,426.52 and 500,369.47

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Solution

The fourth proportional to 1,320,785.10, 1,981,426.52 and 500,369.47 is: 750,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,785.10 : 1,981,426.52 = 500,369.47 : x
  2. Step 2: Convert to fraction form
    1,320,785.10/1,981,426.52 = 500,369.47/x
  3. Step 3: Cross multiply
    1,320,785.10x = 1,981,426.52 × 500,369.47
  4. Step 4: Simplify right side
    1,320,785.10x = 991,445,333,953.70
  5. Step 5: Solve for x
    x = 991,445,333,953.70/1,320,785.10
  6. Step 6: Final answer
    x = 750,648.48

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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.