Home / 878,045.47-1,317,294.88-270,820.13

Finding the Fourth Proportional to 878,045.47, 1,317,294.88 and 270,820.13

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Solution

The fourth proportional to 878,045.47, 1,317,294.88 and 270,820.13 is: 406,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,045.47 : 1,317,294.88 = 270,820.13 : x
  2. Step 2: Convert to fraction form
    878,045.47/1,317,294.88 = 270,820.13/x
  3. Step 3: Cross multiply
    878,045.47x = 1,317,294.88 × 270,820.13
  4. Step 4: Simplify right side
    878,045.47x = 356,749,970,649.93
  5. Step 5: Solve for x
    x = 356,749,970,649.93/878,045.47
  6. Step 6: Final answer
    x = 406,300.11

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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.