Home / 728,082.40-1,092,123.60-307,832.80

Finding the Fourth Proportional to 728,082.40, 1,092,123.60 and 307,832.80

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Solution

The fourth proportional to 728,082.40, 1,092,123.60 and 307,832.80 is: 461,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,082.40 : 1,092,123.60 = 307,832.80 : x
  2. Step 2: Convert to fraction form
    728,082.40/1,092,123.60 = 307,832.80/x
  3. Step 3: Cross multiply
    728,082.40x = 1,092,123.60 × 307,832.80
  4. Step 4: Simplify right side
    728,082.40x = 336,191,465,734.08
  5. Step 5: Solve for x
    x = 336,191,465,734.08/728,082.40
  6. Step 6: Final answer
    x = 461,749.20

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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.