Home / 403,830.72-557,279.19-220,070.88

Finding the Fourth Proportional to 403,830.72, 557,279.19 and 220,070.88

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Solution

The fourth proportional to 403,830.72, 557,279.19 and 220,070.88 is: 303,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,830.72 : 557,279.19 = 220,070.88 : x
  2. Step 2: Convert to fraction form
    403,830.72/557,279.19 = 220,070.88/x
  3. Step 3: Cross multiply
    403,830.72x = 557,279.19 × 220,070.88
  4. Step 4: Simplify right side
    403,830.72x = 122,640,921,748.99
  5. Step 5: Solve for x
    x = 122,640,921,748.99/403,830.72
  6. Step 6: Final answer
    x = 303,693.89

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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.