Home / 891,277.52-1,230,120.22-528,901.20

Finding the Fourth Proportional to 891,277.52, 1,230,120.22 and 528,901.20

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Solution

The fourth proportional to 891,277.52, 1,230,120.22 and 528,901.20 is: 729,976.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,277.52 : 1,230,120.22 = 528,901.20 : x
  2. Step 2: Convert to fraction form
    891,277.52/1,230,120.22 = 528,901.20/x
  3. Step 3: Cross multiply
    891,277.52x = 1,230,120.22 × 528,901.20
  4. Step 4: Simplify right side
    891,277.52x = 650,612,060,502.26
  5. Step 5: Solve for x
    x = 650,612,060,502.26/891,277.52
  6. Step 6: Final answer
    x = 729,976.97

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Double scale
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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.