Home / 761,757.28-1,143,209.52-521,295.52

Finding the Fourth Proportional to 761,757.28, 1,143,209.52 and 521,295.52

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Solution

The fourth proportional to 761,757.28, 1,143,209.52 and 521,295.52 is: 782,335.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,757.28 : 1,143,209.52 = 521,295.52 : x
  2. Step 2: Convert to fraction form
    761,757.28/1,143,209.52 = 521,295.52/x
  3. Step 3: Cross multiply
    761,757.28x = 1,143,209.52 × 521,295.52
  4. Step 4: Simplify right side
    761,757.28x = 595,950,001,197.35
  5. Step 5: Solve for x
    x = 595,950,001,197.35/761,757.28
  6. Step 6: Final answer
    x = 782,335.81

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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.