Home / 820,111.60-1,230,167.40-288,233.20

Finding the Fourth Proportional to 820,111.60, 1,230,167.40 and 288,233.20

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Solution

The fourth proportional to 820,111.60, 1,230,167.40 and 288,233.20 is: 432,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,111.60 : 1,230,167.40 = 288,233.20 : x
  2. Step 2: Convert to fraction form
    820,111.60/1,230,167.40 = 288,233.20/x
  3. Step 3: Cross multiply
    820,111.60x = 1,230,167.40 × 288,233.20
  4. Step 4: Simplify right side
    820,111.60x = 354,575,086,237.68
  5. Step 5: Solve for x
    x = 354,575,086,237.68/820,111.60
  6. Step 6: Final answer
    x = 432,349.80

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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.