Home / 890,302.11-1,336,787.24-770,727.89

Finding the Fourth Proportional to 890,302.11, 1,336,787.24 and 770,727.89

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Solution

The fourth proportional to 890,302.11, 1,336,787.24 and 770,727.89 is: 1,157,246.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,302.11 : 1,336,787.24 = 770,727.89 : x
  2. Step 2: Convert to fraction form
    890,302.11/1,336,787.24 = 770,727.89/x
  3. Step 3: Cross multiply
    890,302.11x = 1,336,787.24 × 770,727.89
  4. Step 4: Simplify right side
    890,302.11x = 1,030,299,198,326.55
  5. Step 5: Solve for x
    x = 1,030,299,198,326.55/890,302.11
  6. Step 6: Final answer
    x = 1,157,246.72

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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.