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Finding the Fourth Proportional to 654,167.20, 980,732.40 and 358,679.20

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Solution

The fourth proportional to 654,167.20, 980,732.40 and 358,679.20 is: 537,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,167.20 : 980,732.40 = 358,679.20 : x
  2. Step 2: Convert to fraction form
    654,167.20/980,732.40 = 358,679.20/x
  3. Step 3: Cross multiply
    654,167.20x = 980,732.40 × 358,679.20
  4. Step 4: Simplify right side
    654,167.20x = 351,768,312,646.08
  5. Step 5: Solve for x
    x = 351,768,312,646.08/654,167.20
  6. Step 6: Final answer
    x = 537,734.56

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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.