Home / 2,291,390.40-3,436,210.80-693,422.40

Finding the Fourth Proportional to 2,291,390.40, 3,436,210.80 and 693,422.40

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Solution

The fourth proportional to 2,291,390.40, 3,436,210.80 and 693,422.40 is: 1,039,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291,390.40 : 3,436,210.80 = 693,422.40 : x
  2. Step 2: Convert to fraction form
    2,291,390.40/3,436,210.80 = 693,422.40/x
  3. Step 3: Cross multiply
    2,291,390.40x = 3,436,210.80 × 693,422.40
  4. Step 4: Simplify right side
    2,291,390.40x = 2,382,745,539,841.92
  5. Step 5: Solve for x
    x = 2,382,745,539,841.92/2,291,390.40
  6. Step 6: Final answer
    x = 1,039,868.87

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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.