Home / 572,720.24-790,355.77-318,071.42

Finding the Fourth Proportional to 572,720.24, 790,355.77 and 318,071.42

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Solution

The fourth proportional to 572,720.24, 790,355.77 and 318,071.42 is: 438,939.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,720.24 : 790,355.77 = 318,071.42 : x
  2. Step 2: Convert to fraction form
    572,720.24/790,355.77 = 318,071.42/x
  3. Step 3: Cross multiply
    572,720.24x = 790,355.77 × 318,071.42
  4. Step 4: Simplify right side
    572,720.24x = 251,389,582,069.09
  5. Step 5: Solve for x
    x = 251,389,582,069.09/572,720.24
  6. Step 6: Final answer
    x = 438,939.58

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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.