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Finding the Fourth Proportional to 587,631.40, 880,832.70 and 320,981.80

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Solution

The fourth proportional to 587,631.40, 880,832.70 and 320,981.80 is: 481,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,631.40 : 880,832.70 = 320,981.80 : x
  2. Step 2: Convert to fraction form
    587,631.40/880,832.70 = 320,981.80/x
  3. Step 3: Cross multiply
    587,631.40x = 880,832.70 × 320,981.80
  4. Step 4: Simplify right side
    587,631.40x = 282,731,265,544.86
  5. Step 5: Solve for x
    x = 282,731,265,544.86/587,631.40
  6. Step 6: Final answer
    x = 481,137.10

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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.