Home / 878,278.61-1,316,401.36-403,968.53

Finding the Fourth Proportional to 878,278.61, 1,316,401.36 and 403,968.53

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Solution

The fourth proportional to 878,278.61, 1,316,401.36 and 403,968.53 is: 605,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,278.61 : 1,316,401.36 = 403,968.53 : x
  2. Step 2: Convert to fraction form
    878,278.61/1,316,401.36 = 403,968.53/x
  3. Step 3: Cross multiply
    878,278.61x = 1,316,401.36 × 403,968.53
  4. Step 4: Simplify right side
    878,278.61x = 531,784,722,289.20
  5. Step 5: Solve for x
    x = 531,784,722,289.20/878,278.61
  6. Step 6: Final answer
    x = 605,485.23

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1.5x scale

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.