Home / 878,401.40-1,316,727.30-404,259.80

Finding the Fourth Proportional to 878,401.40, 1,316,727.30 and 404,259.80

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Solution

The fourth proportional to 878,401.40, 1,316,727.30 and 404,259.80 is: 605,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,401.40 : 1,316,727.30 = 404,259.80 : x
  2. Step 2: Convert to fraction form
    878,401.40/1,316,727.30 = 404,259.80/x
  3. Step 3: Cross multiply
    878,401.40x = 1,316,727.30 × 404,259.80
  4. Step 4: Simplify right side
    878,401.40x = 532,299,914,952.54
  5. Step 5: Solve for x
    x = 532,299,914,952.54/878,401.40
  6. Step 6: Final answer
    x = 605,987.10

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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.