Home / 631,382.20-871,326.18-344,907.04

Finding the Fourth Proportional to 631,382.20, 871,326.18 and 344,907.04

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Solution

The fourth proportional to 631,382.20, 871,326.18 and 344,907.04 is: 475,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,382.20 : 871,326.18 = 344,907.04 : x
  2. Step 2: Convert to fraction form
    631,382.20/871,326.18 = 344,907.04/x
  3. Step 3: Cross multiply
    631,382.20x = 871,326.18 × 344,907.04
  4. Step 4: Simplify right side
    631,382.20x = 300,526,533,618.31
  5. Step 5: Solve for x
    x = 300,526,533,618.31/631,382.20
  6. Step 6: Final answer
    x = 475,981.95

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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.