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Finding the Fourth Proportional to 758.92, 1,046.90 and 525.64

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Solution

The fourth proportional to 758.92, 1,046.90 and 525.64 is: 725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.92 : 1,046.90 = 525.64 : x
  2. Step 2: Convert to fraction form
    758.92/1,046.90 = 525.64/x
  3. Step 3: Cross multiply
    758.92x = 1,046.90 × 525.64
  4. Step 4: Simplify right side
    758.92x = 550,292.52
  5. Step 5: Solve for x
    x = 550,292.52/758.92
  6. Step 6: Final answer
    x = 725.10

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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.