Home / 829,078.60-1,243,617.90-268,515.40

Finding the Fourth Proportional to 829,078.60, 1,243,617.90 and 268,515.40

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Solution

The fourth proportional to 829,078.60, 1,243,617.90 and 268,515.40 is: 402,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,078.60 : 1,243,617.90 = 268,515.40 : x
  2. Step 2: Convert to fraction form
    829,078.60/1,243,617.90 = 268,515.40/x
  3. Step 3: Cross multiply
    829,078.60x = 1,243,617.90 × 268,515.40
  4. Step 4: Simplify right side
    829,078.60x = 333,930,557,865.66
  5. Step 5: Solve for x
    x = 333,930,557,865.66/829,078.60
  6. Step 6: Final answer
    x = 402,773.10

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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.