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Finding the Fourth Proportional to 634,020.68, 875,229.90 and 404,878.16

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Solution

The fourth proportional to 634,020.68, 875,229.90 and 404,878.16 is: 558,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,020.68 : 875,229.90 = 404,878.16 : x
  2. Step 2: Convert to fraction form
    634,020.68/875,229.90 = 404,878.16/x
  3. Step 3: Cross multiply
    634,020.68x = 875,229.90 × 404,878.16
  4. Step 4: Simplify right side
    634,020.68x = 354,361,471,488.98
  5. Step 5: Solve for x
    x = 354,361,471,488.98/634,020.68
  6. Step 6: Final answer
    x = 558,911.54

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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.