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Finding the Fourth Proportional to 646,951.96, 892,781.80 and 360,465.88

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Solution

The fourth proportional to 646,951.96, 892,781.80 and 360,465.88 is: 497,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,951.96 : 892,781.80 = 360,465.88 : x
  2. Step 2: Convert to fraction form
    646,951.96/892,781.80 = 360,465.88/x
  3. Step 3: Cross multiply
    646,951.96x = 892,781.80 × 360,465.88
  4. Step 4: Simplify right side
    646,951.96x = 321,817,377,184.98
  5. Step 5: Solve for x
    x = 321,817,377,184.98/646,951.96
  6. Step 6: Final answer
    x = 497,436.28

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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.