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Finding the Fourth Proportional to 661,259.88, 991,102.50 and 460,493.28

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Solution

The fourth proportional to 661,259.88, 991,102.50 and 460,493.28 is: 690,191.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,259.88 : 991,102.50 = 460,493.28 : x
  2. Step 2: Convert to fraction form
    661,259.88/991,102.50 = 460,493.28/x
  3. Step 3: Cross multiply
    661,259.88x = 991,102.50 × 460,493.28
  4. Step 4: Simplify right side
    661,259.88x = 456,396,041,041.20
  5. Step 5: Solve for x
    x = 456,396,041,041.20/661,259.88
  6. Step 6: Final answer
    x = 690,191.64

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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.