Home / 1,315,114.43-1,816,111.28-1,243,467.20

Finding the Fourth Proportional to 1,315,114.43, 1,816,111.28 and 1,243,467.20

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Solution

The fourth proportional to 1,315,114.43, 1,816,111.28 and 1,243,467.20 is: 1,717,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,114.43 : 1,816,111.28 = 1,243,467.20 : x
  2. Step 2: Convert to fraction form
    1,315,114.43/1,816,111.28 = 1,243,467.20/x
  3. Step 3: Cross multiply
    1,315,114.43x = 1,816,111.28 × 1,243,467.20
  4. Step 4: Simplify right side
    1,315,114.43x = 2,258,274,802,258.13
  5. Step 5: Solve for x
    x = 2,258,274,802,258.13/1,315,114.43
  6. Step 6: Final answer
    x = 1,717,169.82

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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.