Home / 920,082.17-1,269,624.33-678,494.81

Finding the Fourth Proportional to 920,082.17, 1,269,624.33 and 678,494.81

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Solution

The fourth proportional to 920,082.17, 1,269,624.33 and 678,494.81 is: 936,257.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,082.17 : 1,269,624.33 = 678,494.81 : x
  2. Step 2: Convert to fraction form
    920,082.17/1,269,624.33 = 678,494.81/x
  3. Step 3: Cross multiply
    920,082.17x = 1,269,624.33 × 678,494.81
  4. Step 4: Simplify right side
    920,082.17x = 861,433,518,554.73
  5. Step 5: Solve for x
    x = 861,433,518,554.73/920,082.17
  6. Step 6: Final answer
    x = 936,257.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.