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Finding the Fourth Proportional to 722,841.16, 997,508.83 and 396,151.66

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Solution

The fourth proportional to 722,841.16, 997,508.83 and 396,151.66 is: 546,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,841.16 : 997,508.83 = 396,151.66 : x
  2. Step 2: Convert to fraction form
    722,841.16/997,508.83 = 396,151.66/x
  3. Step 3: Cross multiply
    722,841.16x = 997,508.83 × 396,151.66
  4. Step 4: Simplify right side
    722,841.16x = 395,164,778,869.16
  5. Step 5: Solve for x
    x = 395,164,778,869.16/722,841.16
  6. Step 6: Final answer
    x = 546,682.73

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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.