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Finding the Fourth Proportional to 528,200.60, 791,426.10 and 449,468.60

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Solution

The fourth proportional to 528,200.60, 791,426.10 and 449,468.60 is: 673,458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,200.60 : 791,426.10 = 449,468.60 : x
  2. Step 2: Convert to fraction form
    528,200.60/791,426.10 = 449,468.60/x
  3. Step 3: Cross multiply
    528,200.60x = 791,426.10 × 449,468.60
  4. Step 4: Simplify right side
    528,200.60x = 355,721,181,170.46
  5. Step 5: Solve for x
    x = 355,721,181,170.46/528,200.60
  6. Step 6: Final answer
    x = 673,458.50

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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.