Home / 1,435,514.52-1,981,011.96-782,137.20

Finding the Fourth Proportional to 1,435,514.52, 1,981,011.96 and 782,137.20

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Solution

The fourth proportional to 1,435,514.52, 1,981,011.96 and 782,137.20 is: 1,079,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,514.52 : 1,981,011.96 = 782,137.20 : x
  2. Step 2: Convert to fraction form
    1,435,514.52/1,981,011.96 = 782,137.20/x
  3. Step 3: Cross multiply
    1,435,514.52x = 1,981,011.96 × 782,137.20
  4. Step 4: Simplify right side
    1,435,514.52x = 1,549,423,147,560.91
  5. Step 5: Solve for x
    x = 1,549,423,147,560.91/1,435,514.52
  6. Step 6: Final answer
    x = 1,079,350.38

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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.