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Finding the Fourth Proportional to 962.02, 1,328.21 and 626.23

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Solution

The fourth proportional to 962.02, 1,328.21 and 626.23 is: 864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.02 : 1,328.21 = 626.23 : x
  2. Step 2: Convert to fraction form
    962.02/1,328.21 = 626.23/x
  3. Step 3: Cross multiply
    962.02x = 1,328.21 × 626.23
  4. Step 4: Simplify right side
    962.02x = 831,764.95
  5. Step 5: Solve for x
    x = 831,764.95/962.02
  6. Step 6: Final answer
    x = 864.60

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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.