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Finding the Fourth Proportional to 547,432.04, 755,448.63 and 318,118.88

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Solution

The fourth proportional to 547,432.04, 755,448.63 and 318,118.88 is: 438,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,432.04 : 755,448.63 = 318,118.88 : x
  2. Step 2: Convert to fraction form
    547,432.04/755,448.63 = 318,118.88/x
  3. Step 3: Cross multiply
    547,432.04x = 755,448.63 × 318,118.88
  4. Step 4: Simplify right side
    547,432.04x = 240,322,468,295.89
  5. Step 5: Solve for x
    x = 240,322,468,295.89/547,432.04
  6. Step 6: Final answer
    x = 438,999.64

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1.5x scale

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.