Home / 572,788.02-790,425.36-318,155.34

Finding the Fourth Proportional to 572,788.02, 790,425.36 and 318,155.34

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Solution

The fourth proportional to 572,788.02, 790,425.36 and 318,155.34 is: 439,042.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,788.02 : 790,425.36 = 318,155.34 : x
  2. Step 2: Convert to fraction form
    572,788.02/790,425.36 = 318,155.34/x
  3. Step 3: Cross multiply
    572,788.02x = 790,425.36 × 318,155.34
  4. Step 4: Simplify right side
    572,788.02x = 251,478,049,155.42
  5. Step 5: Solve for x
    x = 251,478,049,155.42/572,788.02
  6. Step 6: Final answer
    x = 439,042.09

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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.