Home / 1,390,670.14-2,083,200.37-1,165,398.20

Finding the Fourth Proportional to 1,390,670.14, 2,083,200.37 and 1,165,398.20

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Solution

The fourth proportional to 1,390,670.14, 2,083,200.37 and 1,165,398.20 is: 1,745,746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,670.14 : 2,083,200.37 = 1,165,398.20 : x
  2. Step 2: Convert to fraction form
    1,390,670.14/2,083,200.37 = 1,165,398.20/x
  3. Step 3: Cross multiply
    1,390,670.14x = 2,083,200.37 × 1,165,398.20
  4. Step 4: Simplify right side
    1,390,670.14x = 2,427,757,961,437.33
  5. Step 5: Solve for x
    x = 2,427,757,961,437.33/1,390,670.14
  6. Step 6: Final answer
    x = 1,745,746.81

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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.