Home / 1,643,170.50-2,267,559.81-918,143.10

Finding the Fourth Proportional to 1,643,170.50, 2,267,559.81 and 918,143.10

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Solution

The fourth proportional to 1,643,170.50, 2,267,559.81 and 918,143.10 is: 1,267,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,170.50 : 2,267,559.81 = 918,143.10 : x
  2. Step 2: Convert to fraction form
    1,643,170.50/2,267,559.81 = 918,143.10/x
  3. Step 3: Cross multiply
    1,643,170.50x = 2,267,559.81 × 918,143.10
  4. Step 4: Simplify right side
    1,643,170.50x = 2,081,944,393,388.81
  5. Step 5: Solve for x
    x = 2,081,944,393,388.81/1,643,170.50
  6. Step 6: Final answer
    x = 1,267,028.83

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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.