Home / 687,791.60-1,031,687.40-530,327.60

Finding the Fourth Proportional to 687,791.60, 1,031,687.40 and 530,327.60

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Solution

The fourth proportional to 687,791.60, 1,031,687.40 and 530,327.60 is: 795,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,791.60 : 1,031,687.40 = 530,327.60 : x
  2. Step 2: Convert to fraction form
    687,791.60/1,031,687.40 = 530,327.60/x
  3. Step 3: Cross multiply
    687,791.60x = 1,031,687.40 × 530,327.60
  4. Step 4: Simplify right side
    687,791.60x = 547,132,302,792.24
  5. Step 5: Solve for x
    x = 547,132,302,792.24/687,791.60
  6. Step 6: Final answer
    x = 795,491.40

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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.