Home / 1,391,002.60-2,086,503.90-1,296,999.40

Finding the Fourth Proportional to 1,391,002.60, 2,086,503.90 and 1,296,999.40

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Solution

The fourth proportional to 1,391,002.60, 2,086,503.90 and 1,296,999.40 is: 1,945,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,002.60 : 2,086,503.90 = 1,296,999.40 : x
  2. Step 2: Convert to fraction form
    1,391,002.60/2,086,503.90 = 1,296,999.40/x
  3. Step 3: Cross multiply
    1,391,002.60x = 2,086,503.90 × 1,296,999.40
  4. Step 4: Simplify right side
    1,391,002.60x = 2,706,194,306,397.66
  5. Step 5: Solve for x
    x = 2,706,194,306,397.66/1,391,002.60
  6. Step 6: Final answer
    x = 1,945,499.10

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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.