Home / 871,314.57-1,202,467.48-489,341.25

Finding the Fourth Proportional to 871,314.57, 1,202,467.48 and 489,341.25

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Solution

The fourth proportional to 871,314.57, 1,202,467.48 and 489,341.25 is: 675,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,314.57 : 1,202,467.48 = 489,341.25 : x
  2. Step 2: Convert to fraction form
    871,314.57/1,202,467.48 = 489,341.25/x
  3. Step 3: Cross multiply
    871,314.57x = 1,202,467.48 × 489,341.25
  4. Step 4: Simplify right side
    871,314.57x = 588,416,938,524.20
  5. Step 5: Solve for x
    x = 588,416,938,524.20/871,314.57
  6. Step 6: Final answer
    x = 675,320.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.