Home / 572,270.40-858,405.60-172,972.80

Finding the Fourth Proportional to 572,270.40, 858,405.60 and 172,972.80

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Solution

The fourth proportional to 572,270.40, 858,405.60 and 172,972.80 is: 259,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,270.40 : 858,405.60 = 172,972.80 : x
  2. Step 2: Convert to fraction form
    572,270.40/858,405.60 = 172,972.80/x
  3. Step 3: Cross multiply
    572,270.40x = 858,405.60 × 172,972.80
  4. Step 4: Simplify right side
    572,270.40x = 148,480,820,167.68
  5. Step 5: Solve for x
    x = 148,480,820,167.68/572,270.40
  6. Step 6: Final answer
    x = 259,459.20

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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.