Home / 1,280,668.79-1,916,546.78-794,123.50

Finding the Fourth Proportional to 1,280,668.79, 1,916,546.78 and 794,123.50

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Solution

The fourth proportional to 1,280,668.79, 1,916,546.78 and 794,123.50 is: 1,188,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,668.79 : 1,916,546.78 = 794,123.50 : x
  2. Step 2: Convert to fraction form
    1,280,668.79/1,916,546.78 = 794,123.50/x
  3. Step 3: Cross multiply
    1,280,668.79x = 1,916,546.78 × 794,123.50
  4. Step 4: Simplify right side
    1,280,668.79x = 1,521,974,832,876.71
  5. Step 5: Solve for x
    x = 1,521,974,832,876.71/1,280,668.79
  6. Step 6: Final answer
    x = 1,188,421.90

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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.