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Finding the Fourth Proportional to 545,337.05, 752,370.31 and 315,769.01

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Solution

The fourth proportional to 545,337.05, 752,370.31 and 315,769.01 is: 435,648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,337.05 : 752,370.31 = 315,769.01 : x
  2. Step 2: Convert to fraction form
    545,337.05/752,370.31 = 315,769.01/x
  3. Step 3: Cross multiply
    545,337.05x = 752,370.31 × 315,769.01
  4. Step 4: Simplify right side
    545,337.05x = 237,575,223,390.82
  5. Step 5: Solve for x
    x = 237,575,223,390.82/545,337.05
  6. Step 6: Final answer
    x = 435,648.42

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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.