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Finding the Fourth Proportional to 647,538.30, 970,918.65 and 332,610.30

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Solution

The fourth proportional to 647,538.30, 970,918.65 and 332,610.30 is: 498,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,538.30 : 970,918.65 = 332,610.30 : x
  2. Step 2: Convert to fraction form
    647,538.30/970,918.65 = 332,610.30/x
  3. Step 3: Cross multiply
    647,538.30x = 970,918.65 × 332,610.30
  4. Step 4: Simplify right side
    647,538.30x = 322,937,543,452.10
  5. Step 5: Solve for x
    x = 322,937,543,452.10/647,538.30
  6. Step 6: Final answer
    x = 498,715.74

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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.