Home / 746,677.40-1,120,016.10-409,587.80

Finding the Fourth Proportional to 746,677.40, 1,120,016.10 and 409,587.80

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Solution

The fourth proportional to 746,677.40, 1,120,016.10 and 409,587.80 is: 614,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,677.40 : 1,120,016.10 = 409,587.80 : x
  2. Step 2: Convert to fraction form
    746,677.40/1,120,016.10 = 409,587.80/x
  3. Step 3: Cross multiply
    746,677.40x = 1,120,016.10 × 409,587.80
  4. Step 4: Simplify right side
    746,677.40x = 458,744,930,363.58
  5. Step 5: Solve for x
    x = 458,744,930,363.58/746,677.40
  6. Step 6: Final answer
    x = 614,381.70

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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.