Home / 919,997.40-1,379,996.10-860,948.40

Finding the Fourth Proportional to 919,997.40, 1,379,996.10 and 860,948.40

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Solution

The fourth proportional to 919,997.40, 1,379,996.10 and 860,948.40 is: 1,291,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,997.40 : 1,379,996.10 = 860,948.40 : x
  2. Step 2: Convert to fraction form
    919,997.40/1,379,996.10 = 860,948.40/x
  3. Step 3: Cross multiply
    919,997.40x = 1,379,996.10 × 860,948.40
  4. Step 4: Simplify right side
    919,997.40x = 1,188,105,434,301.24
  5. Step 5: Solve for x
    x = 1,188,105,434,301.24/919,997.40
  6. Step 6: Final answer
    x = 1,291,422.60

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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.