Home / 1,011,318.48-1,393,814.70-765,714.78

Finding the Fourth Proportional to 1,011,318.48, 1,393,814.70 and 765,714.78

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Solution

The fourth proportional to 1,011,318.48, 1,393,814.70 and 765,714.78 is: 1,055,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,318.48 : 1,393,814.70 = 765,714.78 : x
  2. Step 2: Convert to fraction form
    1,011,318.48/1,393,814.70 = 765,714.78/x
  3. Step 3: Cross multiply
    1,011,318.48x = 1,393,814.70 × 765,714.78
  4. Step 4: Simplify right side
    1,011,318.48x = 1,067,264,516,371.27
  5. Step 5: Solve for x
    x = 1,067,264,516,371.27/1,011,318.48
  6. Step 6: Final answer
    x = 1,055,319.90

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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.