Home / 987,133.59-1,362,119.11-579,086.55

Finding the Fourth Proportional to 987,133.59, 1,362,119.11 and 579,086.55

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Solution

The fourth proportional to 987,133.59, 1,362,119.11 and 579,086.55 is: 799,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,133.59 : 1,362,119.11 = 579,086.55 : x
  2. Step 2: Convert to fraction form
    987,133.59/1,362,119.11 = 579,086.55/x
  3. Step 3: Cross multiply
    987,133.59x = 1,362,119.11 × 579,086.55
  4. Step 4: Simplify right side
    987,133.59x = 788,784,854,651.25
  5. Step 5: Solve for x
    x = 788,784,854,651.25/987,133.59
  6. Step 6: Final answer
    x = 799,065.96

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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.