Home / 747,713.90-1,121,570.85-546,947.30

Finding the Fourth Proportional to 747,713.90, 1,121,570.85 and 546,947.30

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Solution

The fourth proportional to 747,713.90, 1,121,570.85 and 546,947.30 is: 820,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,713.90 : 1,121,570.85 = 546,947.30 : x
  2. Step 2: Convert to fraction form
    747,713.90/1,121,570.85 = 546,947.30/x
  3. Step 3: Cross multiply
    747,713.90x = 1,121,570.85 × 546,947.30
  4. Step 4: Simplify right side
    747,713.90x = 613,440,148,166.21
  5. Step 5: Solve for x
    x = 613,440,148,166.21/747,713.90
  6. Step 6: Final answer
    x = 820,420.95

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Double scale
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Similar ratio
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1.5x scale

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.