Home / 2,309,035.40-3,186,567.26-1,290,440.12

Finding the Fourth Proportional to 2,309,035.40, 3,186,567.26 and 1,290,440.12

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Solution

The fourth proportional to 2,309,035.40, 3,186,567.26 and 1,290,440.12 is: 1,780,862.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309,035.40 : 3,186,567.26 = 1,290,440.12 : x
  2. Step 2: Convert to fraction form
    2,309,035.40/3,186,567.26 = 1,290,440.12/x
  3. Step 3: Cross multiply
    2,309,035.40x = 3,186,567.26 × 1,290,440.12
  4. Step 4: Simplify right side
    2,309,035.40x = 4,112,074,237,382.47
  5. Step 5: Solve for x
    x = 4,112,074,237,382.47/2,309,035.40
  6. Step 6: Final answer
    x = 1,780,862.36

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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.