Home / 729,499.13-1,004,480.26-661,070.90

Finding the Fourth Proportional to 729,499.13, 1,004,480.26 and 661,070.90

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Solution

The fourth proportional to 729,499.13, 1,004,480.26 and 661,070.90 is: 910,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,499.13 : 1,004,480.26 = 661,070.90 : x
  2. Step 2: Convert to fraction form
    729,499.13/1,004,480.26 = 661,070.90/x
  3. Step 3: Cross multiply
    729,499.13x = 1,004,480.26 × 661,070.90
  4. Step 4: Simplify right side
    729,499.13x = 664,032,669,510.43
  5. Step 5: Solve for x
    x = 664,032,669,510.43/729,499.13
  6. Step 6: Final answer
    x = 910,258.34

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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.