Home / 917,072.40-1,372,984.20-812,096.40

Finding the Fourth Proportional to 917,072.40, 1,372,984.20 and 812,096.40

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Solution

The fourth proportional to 917,072.40, 1,372,984.20 and 812,096.40 is: 1,215,820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,072.40 : 1,372,984.20 = 812,096.40 : x
  2. Step 2: Convert to fraction form
    917,072.40/1,372,984.20 = 812,096.40/x
  3. Step 3: Cross multiply
    917,072.40x = 1,372,984.20 × 812,096.40
  4. Step 4: Simplify right side
    917,072.40x = 1,114,995,526,076.88
  5. Step 5: Solve for x
    x = 1,114,995,526,076.88/917,072.40
  6. Step 6: Final answer
    x = 1,215,820.61

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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.