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Finding the Fourth Proportional to 962.60, 1,444.04 and 407.35

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Solution

The fourth proportional to 962.60, 1,444.04 and 407.35 is: 611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.60 : 1,444.04 = 407.35 : x
  2. Step 2: Convert to fraction form
    962.60/1,444.04 = 407.35/x
  3. Step 3: Cross multiply
    962.60x = 1,444.04 × 407.35
  4. Step 4: Simplify right side
    962.60x = 588,220.44
  5. Step 5: Solve for x
    x = 588,220.44/962.60
  6. Step 6: Final answer
    x = 611.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.