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Finding the Fourth Proportional to 587,318.80, 879,009.90 and 587,318.80

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Solution

The fourth proportional to 587,318.80, 879,009.90 and 587,318.80 is: 879,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,318.80 : 879,009.90 = 587,318.80 : x
  2. Step 2: Convert to fraction form
    587,318.80/879,009.90 = 587,318.80/x
  3. Step 3: Cross multiply
    587,318.80x = 879,009.90 × 587,318.80
  4. Step 4: Simplify right side
    587,318.80x = 516,259,039,656.12
  5. Step 5: Solve for x
    x = 516,259,039,656.12/587,318.80
  6. Step 6: Final answer
    x = 879,009.90

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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.