Home / 1,390,619.42-2,082,400.77-1,165,387.58

Finding the Fourth Proportional to 1,390,619.42, 2,082,400.77 and 1,165,387.58

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Solution

The fourth proportional to 1,390,619.42, 2,082,400.77 and 1,165,387.58 is: 1,745,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,619.42 : 2,082,400.77 = 1,165,387.58 : x
  2. Step 2: Convert to fraction form
    1,390,619.42/2,082,400.77 = 1,165,387.58/x
  3. Step 3: Cross multiply
    1,390,619.42x = 2,082,400.77 × 1,165,387.58
  4. Step 4: Simplify right side
    1,390,619.42x = 2,426,803,993,940.44
  5. Step 5: Solve for x
    x = 2,426,803,993,940.44/1,390,619.42
  6. Step 6: Final answer
    x = 1,745,124.48

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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.