Home / 890,902.30-1,336,353.45-838,414.30

Finding the Fourth Proportional to 890,902.30, 1,336,353.45 and 838,414.30

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Solution

The fourth proportional to 890,902.30, 1,336,353.45 and 838,414.30 is: 1,257,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,902.30 : 1,336,353.45 = 838,414.30 : x
  2. Step 2: Convert to fraction form
    890,902.30/1,336,353.45 = 838,414.30/x
  3. Step 3: Cross multiply
    890,902.30x = 1,336,353.45 × 838,414.30
  4. Step 4: Simplify right side
    890,902.30x = 1,120,417,842,334.34
  5. Step 5: Solve for x
    x = 1,120,417,842,334.34/890,902.30
  6. Step 6: Final answer
    x = 1,257,621.45

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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.