Home / 871,292.40-1,306,938.60-658,402.80

Finding the Fourth Proportional to 871,292.40, 1,306,938.60 and 658,402.80

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Solution

The fourth proportional to 871,292.40, 1,306,938.60 and 658,402.80 is: 987,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,292.40 : 1,306,938.60 = 658,402.80 : x
  2. Step 2: Convert to fraction form
    871,292.40/1,306,938.60 = 658,402.80/x
  3. Step 3: Cross multiply
    871,292.40x = 1,306,938.60 × 658,402.80
  4. Step 4: Simplify right side
    871,292.40x = 860,492,033,668.08
  5. Step 5: Solve for x
    x = 860,492,033,668.08/871,292.40
  6. Step 6: Final answer
    x = 987,604.20

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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.