Home / 2,912,572.80-4,368,081.60-890,812.80

Finding the Fourth Proportional to 2,912,572.80, 4,368,081.60 and 890,812.80

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Solution

The fourth proportional to 2,912,572.80, 4,368,081.60 and 890,812.80 is: 1,335,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,572.80 : 4,368,081.60 = 890,812.80 : x
  2. Step 2: Convert to fraction form
    2,912,572.80/4,368,081.60 = 890,812.80/x
  3. Step 3: Cross multiply
    2,912,572.80x = 4,368,081.60 × 890,812.80
  4. Step 4: Simplify right side
    2,912,572.80x = 3,891,143,000,724.48
  5. Step 5: Solve for x
    x = 3,891,143,000,724.48/2,912,572.80
  6. Step 6: Final answer
    x = 1,335,981.37

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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.