Home / 642,766.20-963,458.10-243,252.60

Finding the Fourth Proportional to 642,766.20, 963,458.10 and 243,252.60

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Solution

The fourth proportional to 642,766.20, 963,458.10 and 243,252.60 is: 364,617.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,766.20 : 963,458.10 = 243,252.60 : x
  2. Step 2: Convert to fraction form
    642,766.20/963,458.10 = 243,252.60/x
  3. Step 3: Cross multiply
    642,766.20x = 963,458.10 × 243,252.60
  4. Step 4: Simplify right side
    642,766.20x = 234,363,687,816.06
  5. Step 5: Solve for x
    x = 234,363,687,816.06/642,766.20
  6. Step 6: Final answer
    x = 364,617.32

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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.