Home / 890,670.56-1,337,856.41-720,084.89

Finding the Fourth Proportional to 890,670.56, 1,337,856.41 and 720,084.89

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Solution

The fourth proportional to 890,670.56, 1,337,856.41 and 720,084.89 is: 1,081,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,670.56 : 1,337,856.41 = 720,084.89 : x
  2. Step 2: Convert to fraction form
    890,670.56/1,337,856.41 = 720,084.89/x
  3. Step 3: Cross multiply
    890,670.56x = 1,337,856.41 × 720,084.89
  4. Step 4: Simplify right side
    890,670.56x = 963,370,175,540.94
  5. Step 5: Solve for x
    x = 963,370,175,540.94/890,670.56
  6. Step 6: Final answer
    x = 1,081,623.47

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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.