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Finding the Fourth Proportional to 545,740.70, 753,122.59 and 304,023.87

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Solution

The fourth proportional to 545,740.70, 753,122.59 and 304,023.87 is: 419,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,740.70 : 753,122.59 = 304,023.87 : x
  2. Step 2: Convert to fraction form
    545,740.70/753,122.59 = 304,023.87/x
  3. Step 3: Cross multiply
    545,740.70x = 753,122.59 × 304,023.87
  4. Step 4: Simplify right side
    545,740.70x = 228,967,243,636.16
  5. Step 5: Solve for x
    x = 228,967,243,636.16/545,740.70
  6. Step 6: Final answer
    x = 419,553.18

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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.