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Finding the Fourth Proportional to 545,508.49, 752,789.95 and 300,500.10

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Solution

The fourth proportional to 545,508.49, 752,789.95 and 300,500.10 is: 414,683.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,508.49 : 752,789.95 = 300,500.10 : x
  2. Step 2: Convert to fraction form
    545,508.49/752,789.95 = 300,500.10/x
  3. Step 3: Cross multiply
    545,508.49x = 752,789.95 × 300,500.10
  4. Step 4: Simplify right side
    545,508.49x = 226,213,455,254.00
  5. Step 5: Solve for x
    x = 226,213,455,254.00/545,508.49
  6. Step 6: Final answer
    x = 414,683.66

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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.