Home / 641,115.24-960,823.40-340,949.48

Finding the Fourth Proportional to 641,115.24, 960,823.40 and 340,949.48

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Solution

The fourth proportional to 641,115.24, 960,823.40 and 340,949.48 is: 510,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,115.24 : 960,823.40 = 340,949.48 : x
  2. Step 2: Convert to fraction form
    641,115.24/960,823.40 = 340,949.48/x
  3. Step 3: Cross multiply
    641,115.24x = 960,823.40 × 340,949.48
  4. Step 4: Simplify right side
    641,115.24x = 327,592,238,601.83
  5. Step 5: Solve for x
    x = 327,592,238,601.83/641,115.24
  6. Step 6: Final answer
    x = 510,972.47

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1.5x scale

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.