Home / 828,610.40-1,242,915.60-473,660.30

Finding the Fourth Proportional to 828,610.40, 1,242,915.60 and 473,660.30

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Solution

The fourth proportional to 828,610.40, 1,242,915.60 and 473,660.30 is: 710,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,610.40 : 1,242,915.60 = 473,660.30 : x
  2. Step 2: Convert to fraction form
    828,610.40/1,242,915.60 = 473,660.30/x
  3. Step 3: Cross multiply
    828,610.40x = 1,242,915.60 × 473,660.30
  4. Step 4: Simplify right side
    828,610.40x = 588,719,775,970.68
  5. Step 5: Solve for x
    x = 588,719,775,970.68/828,610.40
  6. Step 6: Final answer
    x = 710,490.45

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Similar ratio
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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.