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Finding the Fourth Proportional to 758.84, 1,143.42 and 624.89

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Solution

The fourth proportional to 758.84, 1,143.42 and 624.89 is: 941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.84 : 1,143.42 = 624.89 : x
  2. Step 2: Convert to fraction form
    758.84/1,143.42 = 624.89/x
  3. Step 3: Cross multiply
    758.84x = 1,143.42 × 624.89
  4. Step 4: Simplify right side
    758.84x = 714,511.72
  5. Step 5: Solve for x
    x = 714,511.72/758.84
  6. Step 6: Final answer
    x = 941.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.