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Finding the Fourth Proportional to 944.07, 1,302.88 and 545.80

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Solution

The fourth proportional to 944.07, 1,302.88 and 545.80 is: 753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.07 : 1,302.88 = 545.80 : x
  2. Step 2: Convert to fraction form
    944.07/1,302.88 = 545.80/x
  3. Step 3: Cross multiply
    944.07x = 1,302.88 × 545.80
  4. Step 4: Simplify right side
    944.07x = 711,111.90
  5. Step 5: Solve for x
    x = 711,111.90/944.07
  6. Step 6: Final answer
    x = 753.24

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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.