Home / 1,078,662.30-1,618,576.65-479,715.90

Finding the Fourth Proportional to 1,078,662.30, 1,618,576.65 and 479,715.90

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Solution

The fourth proportional to 1,078,662.30, 1,618,576.65 and 479,715.90 is: 719,833.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,662.30 : 1,618,576.65 = 479,715.90 : x
  2. Step 2: Convert to fraction form
    1,078,662.30/1,618,576.65 = 479,715.90/x
  3. Step 3: Cross multiply
    1,078,662.30x = 1,618,576.65 × 479,715.90
  4. Step 4: Simplify right side
    1,078,662.30x = 776,456,954,373.74
  5. Step 5: Solve for x
    x = 776,456,954,373.74/1,078,662.30
  6. Step 6: Final answer
    x = 719,833.22

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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.