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Finding the Fourth Proportional to 962.86, 1,442.04 and 474.34

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Solution

The fourth proportional to 962.86, 1,442.04 and 474.34 is: 710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.86 : 1,442.04 = 474.34 : x
  2. Step 2: Convert to fraction form
    962.86/1,442.04 = 474.34/x
  3. Step 3: Cross multiply
    962.86x = 1,442.04 × 474.34
  4. Step 4: Simplify right side
    962.86x = 684,017.25
  5. Step 5: Solve for x
    x = 684,017.25/962.86
  6. Step 6: Final answer
    x = 710.40

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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.