Home / 671,642.80-1,007,464.20-198,327.40

Finding the Fourth Proportional to 671,642.80, 1,007,464.20 and 198,327.40

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Solution

The fourth proportional to 671,642.80, 1,007,464.20 and 198,327.40 is: 297,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,642.80 : 1,007,464.20 = 198,327.40 : x
  2. Step 2: Convert to fraction form
    671,642.80/1,007,464.20 = 198,327.40/x
  3. Step 3: Cross multiply
    671,642.80x = 1,007,464.20 × 198,327.40
  4. Step 4: Simplify right side
    671,642.80x = 199,807,755,379.08
  5. Step 5: Solve for x
    x = 199,807,755,379.08/671,642.80
  6. Step 6: Final answer
    x = 297,491.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.