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Finding the Fourth Proportional to 587,018.79, 880,823.64 and 437,559.21

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Solution

The fourth proportional to 587,018.79, 880,823.64 and 437,559.21 is: 656,559.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,018.79 : 880,823.64 = 437,559.21 : x
  2. Step 2: Convert to fraction form
    587,018.79/880,823.64 = 437,559.21/x
  3. Step 3: Cross multiply
    587,018.79x = 880,823.64 × 437,559.21
  4. Step 4: Simplify right side
    587,018.79x = 385,412,496,067.72
  5. Step 5: Solve for x
    x = 385,412,496,067.72/587,018.79
  6. Step 6: Final answer
    x = 656,559.04

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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.