Home / 728,143.28-1,092,422.28-528,662.96

Finding the Fourth Proportional to 728,143.28, 1,092,422.28 and 528,662.96

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Solution

The fourth proportional to 728,143.28, 1,092,422.28 and 528,662.96 is: 793,144.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,143.28 : 1,092,422.28 = 528,662.96 : x
  2. Step 2: Convert to fraction form
    728,143.28/1,092,422.28 = 528,662.96/x
  3. Step 3: Cross multiply
    728,143.28x = 1,092,422.28 × 528,662.96
  4. Step 4: Simplify right side
    728,143.28x = 577,523,196,114.75
  5. Step 5: Solve for x
    x = 577,523,196,114.75/728,143.28
  6. Step 6: Final answer
    x = 793,144.99

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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.