Home / 766,008.99-1,149,272.28-339,486.48

Finding the Fourth Proportional to 766,008.99, 1,149,272.28 and 339,486.48

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Solution

The fourth proportional to 766,008.99, 1,149,272.28 and 339,486.48 is: 509,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,008.99 : 1,149,272.28 = 339,486.48 : x
  2. Step 2: Convert to fraction form
    766,008.99/1,149,272.28 = 339,486.48/x
  3. Step 3: Cross multiply
    766,008.99x = 1,149,272.28 × 339,486.48
  4. Step 4: Simplify right side
    766,008.99x = 390,162,400,898.77
  5. Step 5: Solve for x
    x = 390,162,400,898.77/766,008.99
  6. Step 6: Final answer
    x = 509,344.42

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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.