Home / 669,047.41-922,865.47-396,922.65

Finding the Fourth Proportional to 669,047.41, 922,865.47 and 396,922.65

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Solution

The fourth proportional to 669,047.41, 922,865.47 and 396,922.65 is: 547,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,047.41 : 922,865.47 = 396,922.65 : x
  2. Step 2: Convert to fraction form
    669,047.41/922,865.47 = 396,922.65/x
  3. Step 3: Cross multiply
    669,047.41x = 922,865.47 × 396,922.65
  4. Step 4: Simplify right side
    669,047.41x = 366,306,203,492.84
  5. Step 5: Solve for x
    x = 366,306,203,492.84/669,047.41
  6. Step 6: Final answer
    x = 547,504.10

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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.