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Finding the Fourth Proportional to 880,479.60, 1,321,302.60 and 501,399.60

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Solution

The fourth proportional to 880,479.60, 1,321,302.60 and 501,399.60 is: 752,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,479.60 : 1,321,302.60 = 501,399.60 : x
  2. Step 2: Convert to fraction form
    880,479.60/1,321,302.60 = 501,399.60/x
  3. Step 3: Cross multiply
    880,479.60x = 1,321,302.60 × 501,399.60
  4. Step 4: Simplify right side
    880,479.60x = 662,500,595,118.96
  5. Step 5: Solve for x
    x = 662,500,595,118.96/880,479.60
  6. Step 6: Final answer
    x = 752,431.51

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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.