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Finding the Fourth Proportional to 545,211.72, 752,374.56 and 303,486.30

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Solution

The fourth proportional to 545,211.72, 752,374.56 and 303,486.30 is: 418,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,211.72 : 752,374.56 = 303,486.30 : x
  2. Step 2: Convert to fraction form
    545,211.72/752,374.56 = 303,486.30/x
  3. Step 3: Cross multiply
    545,211.72x = 752,374.56 × 303,486.30
  4. Step 4: Simplify right side
    545,211.72x = 228,335,371,428.53
  5. Step 5: Solve for x
    x = 228,335,371,428.53/545,211.72
  6. Step 6: Final answer
    x = 418,801.29

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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.