Home / 674,259.40-1,011,382.08-389,768.95

Finding the Fourth Proportional to 674,259.40, 1,011,382.08 and 389,768.95

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Solution

The fourth proportional to 674,259.40, 1,011,382.08 and 389,768.95 is: 584,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,259.40 : 1,011,382.08 = 389,768.95 : x
  2. Step 2: Convert to fraction form
    674,259.40/1,011,382.08 = 389,768.95/x
  3. Step 3: Cross multiply
    674,259.40x = 1,011,382.08 × 389,768.95
  4. Step 4: Simplify right side
    674,259.40x = 394,205,331,370.42
  5. Step 5: Solve for x
    x = 394,205,331,370.42/674,259.40
  6. Step 6: Final answer
    x = 584,649.37

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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.