Home / 920,140.52-1,269,500.82-517,654.76

Finding the Fourth Proportional to 920,140.52, 1,269,500.82 and 517,654.76

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Solution

The fourth proportional to 920,140.52, 1,269,500.82 and 517,654.76 is: 714,198.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,140.52 : 1,269,500.82 = 517,654.76 : x
  2. Step 2: Convert to fraction form
    920,140.52/1,269,500.82 = 517,654.76/x
  3. Step 3: Cross multiply
    920,140.52x = 1,269,500.82 × 517,654.76
  4. Step 4: Simplify right side
    920,140.52x = 657,163,142,296.90
  5. Step 5: Solve for x
    x = 657,163,142,296.90/920,140.52
  6. Step 6: Final answer
    x = 714,198.68

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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.