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Finding the Fourth Proportional to 880,879.20, 1,321,318.80 and 249,813.60

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Solution

The fourth proportional to 880,879.20, 1,321,318.80 and 249,813.60 is: 374,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,879.20 : 1,321,318.80 = 249,813.60 : x
  2. Step 2: Convert to fraction form
    880,879.20/1,321,318.80 = 249,813.60/x
  3. Step 3: Cross multiply
    880,879.20x = 1,321,318.80 × 249,813.60
  4. Step 4: Simplify right side
    880,879.20x = 330,083,406,175.68
  5. Step 5: Solve for x
    x = 330,083,406,175.68/880,879.20
  6. Step 6: Final answer
    x = 374,720.40

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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.