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Finding the Fourth Proportional to 646,648.46, 892,294.01 and 374,711.42

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Solution

The fourth proportional to 646,648.46, 892,294.01 and 374,711.42 is: 517,054.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,648.46 : 892,294.01 = 374,711.42 : x
  2. Step 2: Convert to fraction form
    646,648.46/892,294.01 = 374,711.42/x
  3. Step 3: Cross multiply
    646,648.46x = 892,294.01 × 374,711.42
  4. Step 4: Simplify right side
    646,648.46x = 334,352,749,209.57
  5. Step 5: Solve for x
    x = 334,352,749,209.57/646,648.46
  6. Step 6: Final answer
    x = 517,054.90

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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.