Home / 749,246.60-1,123,869.90-243,855.20

Finding the Fourth Proportional to 749,246.60, 1,123,869.90 and 243,855.20

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Solution

The fourth proportional to 749,246.60, 1,123,869.90 and 243,855.20 is: 365,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,246.60 : 1,123,869.90 = 243,855.20 : x
  2. Step 2: Convert to fraction form
    749,246.60/1,123,869.90 = 243,855.20/x
  3. Step 3: Cross multiply
    749,246.60x = 1,123,869.90 × 243,855.20
  4. Step 4: Simplify right side
    749,246.60x = 274,061,519,238.48
  5. Step 5: Solve for x
    x = 274,061,519,238.48/749,246.60
  6. Step 6: Final answer
    x = 365,782.80

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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.