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Finding the Fourth Proportional to 587,019.30, 880,824.40 and 437,559.72

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Solution

The fourth proportional to 587,019.30, 880,824.40 and 437,559.72 is: 656,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,019.30 : 880,824.40 = 437,559.72 : x
  2. Step 2: Convert to fraction form
    587,019.30/880,824.40 = 437,559.72/x
  3. Step 3: Cross multiply
    587,019.30x = 880,824.40 × 437,559.72
  4. Step 4: Simplify right side
    587,019.30x = 385,413,277,833.17
  5. Step 5: Solve for x
    x = 385,413,277,833.17/587,019.30
  6. Step 6: Final answer
    x = 656,559.81

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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.