Home / 746,475.40-1,119,713.10-409,385.80

Finding the Fourth Proportional to 746,475.40, 1,119,713.10 and 409,385.80

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Solution

The fourth proportional to 746,475.40, 1,119,713.10 and 409,385.80 is: 614,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,475.40 : 1,119,713.10 = 409,385.80 : x
  2. Step 2: Convert to fraction form
    746,475.40/1,119,713.10 = 409,385.80/x
  3. Step 3: Cross multiply
    746,475.40x = 1,119,713.10 × 409,385.80
  4. Step 4: Simplify right side
    746,475.40x = 458,394,643,213.98
  5. Step 5: Solve for x
    x = 458,394,643,213.98/746,475.40
  6. Step 6: Final answer
    x = 614,078.70

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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.