Home / 749,095.20-1,123,642.80-300,031.20

Finding the Fourth Proportional to 749,095.20, 1,123,642.80 and 300,031.20

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Solution

The fourth proportional to 749,095.20, 1,123,642.80 and 300,031.20 is: 450,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,095.20 : 1,123,642.80 = 300,031.20 : x
  2. Step 2: Convert to fraction form
    749,095.20/1,123,642.80 = 300,031.20/x
  3. Step 3: Cross multiply
    749,095.20x = 1,123,642.80 × 300,031.20
  4. Step 4: Simplify right side
    749,095.20x = 337,127,897,655.36
  5. Step 5: Solve for x
    x = 337,127,897,655.36/749,095.20
  6. Step 6: Final answer
    x = 450,046.80

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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.