Home / 1,240,388.82-1,857,870.59-879,465.62

Finding the Fourth Proportional to 1,240,388.82, 1,857,870.59 and 879,465.62

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Solution

The fourth proportional to 1,240,388.82, 1,857,870.59 and 879,465.62 is: 1,317,275.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,388.82 : 1,857,870.59 = 879,465.62 : x
  2. Step 2: Convert to fraction form
    1,240,388.82/1,857,870.59 = 879,465.62/x
  3. Step 3: Cross multiply
    1,240,388.82x = 1,857,870.59 × 879,465.62
  4. Step 4: Simplify right side
    1,240,388.82x = 1,633,933,310,314.12
  5. Step 5: Solve for x
    x = 1,633,933,310,314.12/1,240,388.82
  6. Step 6: Final answer
    x = 1,317,275.10

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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.