Home / 728,708.20-1,093,062.30-528,087.40

Finding the Fourth Proportional to 728,708.20, 1,093,062.30 and 528,087.40

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Solution

The fourth proportional to 728,708.20, 1,093,062.30 and 528,087.40 is: 792,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,708.20 : 1,093,062.30 = 528,087.40 : x
  2. Step 2: Convert to fraction form
    728,708.20/1,093,062.30 = 528,087.40/x
  3. Step 3: Cross multiply
    728,708.20x = 1,093,062.30 × 528,087.40
  4. Step 4: Simplify right side
    728,708.20x = 577,232,428,045.02
  5. Step 5: Solve for x
    x = 577,232,428,045.02/728,708.20
  6. Step 6: Final answer
    x = 792,131.10

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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.