Home / 1,011,500.78-1,395,752.07-558,764.78

Finding the Fourth Proportional to 1,011,500.78, 1,395,752.07 and 558,764.78

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Solution

The fourth proportional to 1,011,500.78, 1,395,752.07 and 558,764.78 is: 771,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,500.78 : 1,395,752.07 = 558,764.78 : x
  2. Step 2: Convert to fraction form
    1,011,500.78/1,395,752.07 = 558,764.78/x
  3. Step 3: Cross multiply
    1,011,500.78x = 1,395,752.07 × 558,764.78
  4. Step 4: Simplify right side
    1,011,500.78x = 779,897,098,328.10
  5. Step 5: Solve for x
    x = 779,897,098,328.10/1,011,500.78
  6. Step 6: Final answer
    x = 771,029.66

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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.