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Finding the Fourth Proportional to 545,292.52, 752,424.42 and 318,894.28

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Solution

The fourth proportional to 545,292.52, 752,424.42 and 318,894.28 is: 440,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,292.52 : 752,424.42 = 318,894.28 : x
  2. Step 2: Convert to fraction form
    545,292.52/752,424.42 = 318,894.28/x
  3. Step 3: Cross multiply
    545,292.52x = 752,424.42 × 318,894.28
  4. Step 4: Simplify right side
    545,292.52x = 239,943,843,670.32
  5. Step 5: Solve for x
    x = 239,943,843,670.32/545,292.52
  6. Step 6: Final answer
    x = 440,027.76

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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.