Home / 2,291,145.20-3,161,812.77-1,258,748.40

Finding the Fourth Proportional to 2,291,145.20, 3,161,812.77 and 1,258,748.40

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Solution

The fourth proportional to 2,291,145.20, 3,161,812.77 and 1,258,748.40 is: 1,737,090.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291,145.20 : 3,161,812.77 = 1,258,748.40 : x
  2. Step 2: Convert to fraction form
    2,291,145.20/3,161,812.77 = 1,258,748.40/x
  3. Step 3: Cross multiply
    2,291,145.20x = 3,161,812.77 × 1,258,748.40
  4. Step 4: Simplify right side
    2,291,145.20x = 3,979,926,772,326.03
  5. Step 5: Solve for x
    x = 3,979,926,772,326.03/2,291,145.20
  6. Step 6: Final answer
    x = 1,737,090.59

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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.