Home / 456,824.65-684,851.62-287,972.83

Finding the Fourth Proportional to 456,824.65, 684,851.62 and 287,972.83

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Solution

The fourth proportional to 456,824.65, 684,851.62 and 287,972.83 is: 431,716.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,824.65 : 684,851.62 = 287,972.83 : x
  2. Step 2: Convert to fraction form
    456,824.65/684,851.62 = 287,972.83/x
  3. Step 3: Cross multiply
    456,824.65x = 684,851.62 × 287,972.83
  4. Step 4: Simplify right side
    456,824.65x = 197,218,659,141.49
  5. Step 5: Solve for x
    x = 197,218,659,141.49/456,824.65
  6. Step 6: Final answer
    x = 431,716.33

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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.