Home / 1,247,474.40-1,871,211.60-448,879.20

Finding the Fourth Proportional to 1,247,474.40, 1,871,211.60 and 448,879.20

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Solution

The fourth proportional to 1,247,474.40, 1,871,211.60 and 448,879.20 is: 673,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,474.40 : 1,871,211.60 = 448,879.20 : x
  2. Step 2: Convert to fraction form
    1,247,474.40/1,871,211.60 = 448,879.20/x
  3. Step 3: Cross multiply
    1,247,474.40x = 1,871,211.60 × 448,879.20
  4. Step 4: Simplify right side
    1,247,474.40x = 839,947,966,038.72
  5. Step 5: Solve for x
    x = 839,947,966,038.72/1,247,474.40
  6. Step 6: Final answer
    x = 673,318.80

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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.