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Finding the Fourth Proportional to 677,319.68, 934,512 and 533,633.60

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Solution

The fourth proportional to 677,319.68, 934,512 and 533,633.60 is: 736,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,319.68 : 934,512 = 533,633.60 : x
  2. Step 2: Convert to fraction form
    677,319.68/934,512 = 533,633.60/x
  3. Step 3: Cross multiply
    677,319.68x = 934,512 × 533,633.60
  4. Step 4: Simplify right side
    677,319.68x = 498,687,002,803.20
  5. Step 5: Solve for x
    x = 498,687,002,803.20/677,319.68
  6. Step 6: Final answer
    x = 736,265.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.