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Finding the Fourth Proportional to 539,885.38, 745,047.45 and 298,174.09

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Solution

The fourth proportional to 539,885.38, 745,047.45 and 298,174.09 is: 411,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,885.38 : 745,047.45 = 298,174.09 : x
  2. Step 2: Convert to fraction form
    539,885.38/745,047.45 = 298,174.09/x
  3. Step 3: Cross multiply
    539,885.38x = 745,047.45 × 298,174.09
  4. Step 4: Simplify right side
    539,885.38x = 222,153,845,410.57
  5. Step 5: Solve for x
    x = 222,153,845,410.57/539,885.38
  6. Step 6: Final answer
    x = 411,483.35

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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.