Home / 961,507.30-1,440,052.69-480,257.95

Finding the Fourth Proportional to 961,507.30, 1,440,052.69 and 480,257.95

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Solution

The fourth proportional to 961,507.30, 1,440,052.69 and 480,257.95 is: 719,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,507.30 : 1,440,052.69 = 480,257.95 : x
  2. Step 2: Convert to fraction form
    961,507.30/1,440,052.69 = 480,257.95/x
  3. Step 3: Cross multiply
    961,507.30x = 1,440,052.69 × 480,257.95
  4. Step 4: Simplify right side
    961,507.30x = 691,596,752,791.39
  5. Step 5: Solve for x
    x = 691,596,752,791.39/961,507.30
  6. Step 6: Final answer
    x = 719,283.93

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Double scale
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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.