Home / 1,391,569.70-2,087,135.85-492,882.80

Finding the Fourth Proportional to 1,391,569.70, 2,087,135.85 and 492,882.80

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Solution

The fourth proportional to 1,391,569.70, 2,087,135.85 and 492,882.80 is: 739,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,569.70 : 2,087,135.85 = 492,882.80 : x
  2. Step 2: Convert to fraction form
    1,391,569.70/2,087,135.85 = 492,882.80/x
  3. Step 3: Cross multiply
    1,391,569.70x = 2,087,135.85 × 492,882.80
  4. Step 4: Simplify right side
    1,391,569.70x = 1,028,713,361,728.38
  5. Step 5: Solve for x
    x = 1,028,713,361,728.38/1,391,569.70
  6. Step 6: Final answer
    x = 739,246.74

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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.