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Finding the Fourth Proportional to 647,246.30, 970,523.85 and 272,846.30

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Solution

The fourth proportional to 647,246.30, 970,523.85 and 272,846.30 is: 409,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,246.30 : 970,523.85 = 272,846.30 : x
  2. Step 2: Convert to fraction form
    647,246.30/970,523.85 = 272,846.30/x
  3. Step 3: Cross multiply
    647,246.30x = 970,523.85 × 272,846.30
  4. Step 4: Simplify right side
    647,246.30x = 264,803,841,534.26
  5. Step 5: Solve for x
    x = 264,803,841,534.26/647,246.30
  6. Step 6: Final answer
    x = 409,123.76

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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.