Home / 669,017.75-923,125.39-378,627.95

Finding the Fourth Proportional to 669,017.75, 923,125.39 and 378,627.95

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Solution

The fourth proportional to 669,017.75, 923,125.39 and 378,627.95 is: 522,439.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,017.75 : 923,125.39 = 378,627.95 : x
  2. Step 2: Convert to fraction form
    669,017.75/923,125.39 = 378,627.95/x
  3. Step 3: Cross multiply
    669,017.75x = 923,125.39 × 378,627.95
  4. Step 4: Simplify right side
    669,017.75x = 349,521,074,008.65
  5. Step 5: Solve for x
    x = 349,521,074,008.65/669,017.75
  6. Step 6: Final answer
    x = 522,439.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.