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Finding the Fourth Proportional to 647,763.20, 970,332.60 and 366,952.40

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Solution

The fourth proportional to 647,763.20, 970,332.60 and 366,952.40 is: 549,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,763.20 : 970,332.60 = 366,952.40 : x
  2. Step 2: Convert to fraction form
    647,763.20/970,332.60 = 366,952.40/x
  3. Step 3: Cross multiply
    647,763.20x = 970,332.60 × 366,952.40
  4. Step 4: Simplify right side
    647,763.20x = 356,065,876,368.24
  5. Step 5: Solve for x
    x = 356,065,876,368.24/647,763.20
  6. Step 6: Final answer
    x = 549,685.25

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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.