Home / 979,834.79-1,469,374.29-380,717.08

Finding the Fourth Proportional to 979,834.79, 1,469,374.29 and 380,717.08

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Solution

The fourth proportional to 979,834.79, 1,469,374.29 and 380,717.08 is: 570,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,834.79 : 1,469,374.29 = 380,717.08 : x
  2. Step 2: Convert to fraction form
    979,834.79/1,469,374.29 = 380,717.08/x
  3. Step 3: Cross multiply
    979,834.79x = 1,469,374.29 × 380,717.08
  4. Step 4: Simplify right side
    979,834.79x = 559,415,885,442.44
  5. Step 5: Solve for x
    x = 559,415,885,442.44/979,834.79
  6. Step 6: Final answer
    x = 570,928.78

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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.