Home / 1,507,178.97-2,079,930.57-818,864.46

Finding the Fourth Proportional to 1,507,178.97, 2,079,930.57 and 818,864.46

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Solution

The fourth proportional to 1,507,178.97, 2,079,930.57 and 818,864.46 is: 1,130,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,178.97 : 2,079,930.57 = 818,864.46 : x
  2. Step 2: Convert to fraction form
    1,507,178.97/2,079,930.57 = 818,864.46/x
  3. Step 3: Cross multiply
    1,507,178.97x = 2,079,930.57 × 818,864.46
  4. Step 4: Simplify right side
    1,507,178.97x = 1,703,181,223,040.54
  5. Step 5: Solve for x
    x = 1,703,181,223,040.54/1,507,178.97
  6. Step 6: Final answer
    x = 1,130,045.77

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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.