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Finding the Fourth Proportional to 904.33, 1,248 and 545.52

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Solution

The fourth proportional to 904.33, 1,248 and 545.52 is: 752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.33 : 1,248 = 545.52 : x
  2. Step 2: Convert to fraction form
    904.33/1,248 = 545.52/x
  3. Step 3: Cross multiply
    904.33x = 1,248 × 545.52
  4. Step 4: Simplify right side
    904.33x = 680,808.96
  5. Step 5: Solve for x
    x = 680,808.96/904.33
  6. Step 6: Final answer
    x = 752.83

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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.