Home / 572,747.63-790,408.13-318,115.22

Finding the Fourth Proportional to 572,747.63, 790,408.13 and 318,115.22

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Solution

The fourth proportional to 572,747.63, 790,408.13 and 318,115.22 is: 439,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,747.63 : 790,408.13 = 318,115.22 : x
  2. Step 2: Convert to fraction form
    572,747.63/790,408.13 = 318,115.22/x
  3. Step 3: Cross multiply
    572,747.63x = 790,408.13 × 318,115.22
  4. Step 4: Simplify right side
    572,747.63x = 251,440,850,622.12
  5. Step 5: Solve for x
    x = 251,440,850,622.12/572,747.63
  6. Step 6: Final answer
    x = 439,008.11

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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.