Home / 1,187,791.36-1,781,312.01-388,889.17

Finding the Fourth Proportional to 1,187,791.36, 1,781,312.01 and 388,889.17

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Solution

The fourth proportional to 1,187,791.36, 1,781,312.01 and 388,889.17 is: 583,210.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,791.36 : 1,781,312.01 = 388,889.17 : x
  2. Step 2: Convert to fraction form
    1,187,791.36/1,781,312.01 = 388,889.17/x
  3. Step 3: Cross multiply
    1,187,791.36x = 1,781,312.01 × 388,889.17
  4. Step 4: Simplify right side
    1,187,791.36x = 692,732,949,079.93
  5. Step 5: Solve for x
    x = 692,732,949,079.93/1,187,791.36
  6. Step 6: Final answer
    x = 583,210.97

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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.