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Finding the Fourth Proportional to 674.01, 930.65 and 526.39

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Solution

The fourth proportional to 674.01, 930.65 and 526.39 is: 726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.01 : 930.65 = 526.39 : x
  2. Step 2: Convert to fraction form
    674.01/930.65 = 526.39/x
  3. Step 3: Cross multiply
    674.01x = 930.65 × 526.39
  4. Step 4: Simplify right side
    674.01x = 489,886.17
  5. Step 5: Solve for x
    x = 489,886.17/674.01
  6. Step 6: Final answer
    x = 726.82

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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.