Home / 928,865.20-1,391,985.60-572,821.60

Finding the Fourth Proportional to 928,865.20, 1,391,985.60 and 572,821.60

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Solution

The fourth proportional to 928,865.20, 1,391,985.60 and 572,821.60 is: 858,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,865.20 : 1,391,985.60 = 572,821.60 : x
  2. Step 2: Convert to fraction form
    928,865.20/1,391,985.60 = 572,821.60/x
  3. Step 3: Cross multiply
    928,865.20x = 1,391,985.60 × 572,821.60
  4. Step 4: Simplify right side
    928,865.20x = 797,359,418,568.96
  5. Step 5: Solve for x
    x = 797,359,418,568.96/928,865.20
  6. Step 6: Final answer
    x = 858,423.18

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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.