Home / 572,769.20-790,422.36-318,113.84

Finding the Fourth Proportional to 572,769.20, 790,422.36 and 318,113.84

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Solution

The fourth proportional to 572,769.20, 790,422.36 and 318,113.84 is: 438,997.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,769.20 : 790,422.36 = 318,113.84 : x
  2. Step 2: Convert to fraction form
    572,769.20/790,422.36 = 318,113.84/x
  3. Step 3: Cross multiply
    572,769.20x = 790,422.36 × 318,113.84
  4. Step 4: Simplify right side
    572,769.20x = 251,444,292,161.46
  5. Step 5: Solve for x
    x = 251,444,292,161.46/572,769.20
  6. Step 6: Final answer
    x = 438,997.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.