Home / 1,247,560.80-1,871,341.20-449,743.20

Finding the Fourth Proportional to 1,247,560.80, 1,871,341.20 and 449,743.20

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Solution

The fourth proportional to 1,247,560.80, 1,871,341.20 and 449,743.20 is: 674,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,560.80 : 1,871,341.20 = 449,743.20 : x
  2. Step 2: Convert to fraction form
    1,247,560.80/1,871,341.20 = 449,743.20/x
  3. Step 3: Cross multiply
    1,247,560.80x = 1,871,341.20 × 449,743.20
  4. Step 4: Simplify right side
    1,247,560.80x = 841,622,979,579.84
  5. Step 5: Solve for x
    x = 841,622,979,579.84/1,247,560.80
  6. Step 6: Final answer
    x = 674,614.80

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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.