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Finding the Fourth Proportional to 548,353.46, 755,045.51 and 479,987.84

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Solution

The fourth proportional to 548,353.46, 755,045.51 and 479,987.84 is: 660,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,353.46 : 755,045.51 = 479,987.84 : x
  2. Step 2: Convert to fraction form
    548,353.46/755,045.51 = 479,987.84/x
  3. Step 3: Cross multiply
    548,353.46x = 755,045.51 × 479,987.84
  4. Step 4: Simplify right side
    548,353.46x = 362,412,657,271.43
  5. Step 5: Solve for x
    x = 362,412,657,271.43/548,353.46
  6. Step 6: Final answer
    x = 660,910.68

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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.