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Finding the Fourth Proportional to 522,576.21, 721,308.65 and 341,315.85

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Solution

The fourth proportional to 522,576.21, 721,308.65 and 341,315.85 is: 471,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,576.21 : 721,308.65 = 341,315.85 : x
  2. Step 2: Convert to fraction form
    522,576.21/721,308.65 = 341,315.85/x
  3. Step 3: Cross multiply
    522,576.21x = 721,308.65 × 341,315.85
  4. Step 4: Simplify right side
    522,576.21x = 246,194,073,280.52
  5. Step 5: Solve for x
    x = 246,194,073,280.52/522,576.21
  6. Step 6: Final answer
    x = 471,116.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.