Home / 728,707.20-1,093,060.80-528,086.40

Finding the Fourth Proportional to 728,707.20, 1,093,060.80 and 528,086.40

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Solution

The fourth proportional to 728,707.20, 1,093,060.80 and 528,086.40 is: 792,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,707.20 : 1,093,060.80 = 528,086.40 : x
  2. Step 2: Convert to fraction form
    728,707.20/1,093,060.80 = 528,086.40/x
  3. Step 3: Cross multiply
    728,707.20x = 1,093,060.80 × 528,086.40
  4. Step 4: Simplify right side
    728,707.20x = 577,230,542,853.12
  5. Step 5: Solve for x
    x = 577,230,542,853.12/728,707.20
  6. Step 6: Final answer
    x = 792,129.60

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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.