Home / 1,225,187.41-1,690,510.89-715,791.37

Finding the Fourth Proportional to 1,225,187.41, 1,690,510.89 and 715,791.37

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Solution

The fourth proportional to 1,225,187.41, 1,690,510.89 and 715,791.37 is: 987,647.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,187.41 : 1,690,510.89 = 715,791.37 : x
  2. Step 2: Convert to fraction form
    1,225,187.41/1,690,510.89 = 715,791.37/x
  3. Step 3: Cross multiply
    1,225,187.41x = 1,690,510.89 × 715,791.37
  4. Step 4: Simplify right side
    1,225,187.41x = 1,210,053,105,953.02
  5. Step 5: Solve for x
    x = 1,210,053,105,953.02/1,225,187.41
  6. Step 6: Final answer
    x = 987,647.36

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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.