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Finding the Fourth Proportional to 653,240.28, 979,851.72 and 316,311.12

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Solution

The fourth proportional to 653,240.28, 979,851.72 and 316,311.12 is: 474,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,240.28 : 979,851.72 = 316,311.12 : x
  2. Step 2: Convert to fraction form
    653,240.28/979,851.72 = 316,311.12/x
  3. Step 3: Cross multiply
    653,240.28x = 979,851.72 × 316,311.12
  4. Step 4: Simplify right side
    653,240.28x = 309,937,994,987.13
  5. Step 5: Solve for x
    x = 309,937,994,987.13/653,240.28
  6. Step 6: Final answer
    x = 474,462.47

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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.