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Finding the Fourth Proportional to 539,862.56, 745,010.40 and 301,398.56

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Solution

The fourth proportional to 539,862.56, 745,010.40 and 301,398.56 is: 415,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,862.56 : 745,010.40 = 301,398.56 : x
  2. Step 2: Convert to fraction form
    539,862.56/745,010.40 = 301,398.56/x
  3. Step 3: Cross multiply
    539,862.56x = 745,010.40 × 301,398.56
  4. Step 4: Simplify right side
    539,862.56x = 224,545,061,745.02
  5. Step 5: Solve for x
    x = 224,545,061,745.02/539,862.56
  6. Step 6: Final answer
    x = 415,930.05

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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.