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Finding the Fourth Proportional to 545,310.23, 752,508.43 and 303,586.58

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Solution

The fourth proportional to 545,310.23, 752,508.43 and 303,586.58 is: 418,938.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,310.23 : 752,508.43 = 303,586.58 : x
  2. Step 2: Convert to fraction form
    545,310.23/752,508.43 = 303,586.58/x
  3. Step 3: Cross multiply
    545,310.23x = 752,508.43 × 303,586.58
  4. Step 4: Simplify right side
    545,310.23x = 228,451,461,807.17
  5. Step 5: Solve for x
    x = 228,451,461,807.17/545,310.23
  6. Step 6: Final answer
    x = 418,938.53

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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.