Home / 831,561.78-1,247,331.74-200,470.53

Finding the Fourth Proportional to 831,561.78, 1,247,331.74 and 200,470.53

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Solution

The fourth proportional to 831,561.78, 1,247,331.74 and 200,470.53 is: 300,703.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,561.78 : 1,247,331.74 = 200,470.53 : x
  2. Step 2: Convert to fraction form
    831,561.78/1,247,331.74 = 200,470.53/x
  3. Step 3: Cross multiply
    831,561.78x = 1,247,331.74 × 200,470.53
  4. Step 4: Simplify right side
    831,561.78x = 250,053,254,001.27
  5. Step 5: Solve for x
    x = 250,053,254,001.27/831,561.78
  6. Step 6: Final answer
    x = 300,703.16

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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.