Home / 728,721.20-1,093,081.80-528,100.40

Finding the Fourth Proportional to 728,721.20, 1,093,081.80 and 528,100.40

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Solution

The fourth proportional to 728,721.20, 1,093,081.80 and 528,100.40 is: 792,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,721.20 : 1,093,081.80 = 528,100.40 : x
  2. Step 2: Convert to fraction form
    728,721.20/1,093,081.80 = 528,100.40/x
  3. Step 3: Cross multiply
    728,721.20x = 1,093,081.80 × 528,100.40
  4. Step 4: Simplify right side
    728,721.20x = 577,256,935,812.72
  5. Step 5: Solve for x
    x = 577,256,935,812.72/728,721.20
  6. Step 6: Final answer
    x = 792,150.60

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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.