Home / 827,663.76-1,142,139.20-483,531.60

Finding the Fourth Proportional to 827,663.76, 1,142,139.20 and 483,531.60

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Solution

The fourth proportional to 827,663.76, 1,142,139.20 and 483,531.60 is: 667,252.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,663.76 : 1,142,139.20 = 483,531.60 : x
  2. Step 2: Convert to fraction form
    827,663.76/1,142,139.20 = 483,531.60/x
  3. Step 3: Cross multiply
    827,663.76x = 1,142,139.20 × 483,531.60
  4. Step 4: Simplify right side
    827,663.76x = 552,260,394,798.72
  5. Step 5: Solve for x
    x = 552,260,394,798.72/827,663.76
  6. Step 6: Final answer
    x = 667,252.12

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1.5x scale

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.