Home / 1,247,758.40-1,871,631.52-489,063.80

Finding the Fourth Proportional to 1,247,758.40, 1,871,631.52 and 489,063.80

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Solution

The fourth proportional to 1,247,758.40, 1,871,631.52 and 489,063.80 is: 733,593.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,758.40 : 1,871,631.52 = 489,063.80 : x
  2. Step 2: Convert to fraction form
    1,247,758.40/1,871,631.52 = 489,063.80/x
  3. Step 3: Cross multiply
    1,247,758.40x = 1,871,631.52 × 489,063.80
  4. Step 4: Simplify right side
    1,247,758.40x = 915,347,223,370.98
  5. Step 5: Solve for x
    x = 915,347,223,370.98/1,247,758.40
  6. Step 6: Final answer
    x = 733,593.32

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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.