Home / 704,077.20-1,056,115.80-389,149.20

Finding the Fourth Proportional to 704,077.20, 1,056,115.80 and 389,149.20

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Solution

The fourth proportional to 704,077.20, 1,056,115.80 and 389,149.20 is: 583,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,077.20 : 1,056,115.80 = 389,149.20 : x
  2. Step 2: Convert to fraction form
    704,077.20/1,056,115.80 = 389,149.20/x
  3. Step 3: Cross multiply
    704,077.20x = 1,056,115.80 × 389,149.20
  4. Step 4: Simplify right side
    704,077.20x = 410,986,618,677.36
  5. Step 5: Solve for x
    x = 410,986,618,677.36/704,077.20
  6. Step 6: Final answer
    x = 583,723.80

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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.