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Finding the Fourth Proportional to 587,366.40, 880,358.40 and 306,739.20

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Solution

The fourth proportional to 587,366.40, 880,358.40 and 306,739.20 is: 459,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,366.40 : 880,358.40 = 306,739.20 : x
  2. Step 2: Convert to fraction form
    587,366.40/880,358.40 = 306,739.20/x
  3. Step 3: Cross multiply
    587,366.40x = 880,358.40 × 306,739.20
  4. Step 4: Simplify right side
    587,366.40x = 270,040,431,329.28
  5. Step 5: Solve for x
    x = 270,040,431,329.28/587,366.40
  6. Step 6: Final answer
    x = 459,747.84

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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.