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Finding the Fourth Proportional to 545,339.31, 752,569.56 and 303,610.20

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Solution

The fourth proportional to 545,339.31, 752,569.56 and 303,610.20 is: 418,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,339.31 : 752,569.56 = 303,610.20 : x
  2. Step 2: Convert to fraction form
    545,339.31/752,569.56 = 303,610.20/x
  3. Step 3: Cross multiply
    545,339.31x = 752,569.56 × 303,610.20
  4. Step 4: Simplify right side
    545,339.31x = 228,487,794,625.51
  5. Step 5: Solve for x
    x = 228,487,794,625.51/545,339.31
  6. Step 6: Final answer
    x = 418,982.81

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1.5x scale

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.