Home / 1,605,731.57-2,215,705.37-917,448

Finding the Fourth Proportional to 1,605,731.57, 2,215,705.37 and 917,448

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Solution

The fourth proportional to 1,605,731.57, 2,215,705.37 and 917,448 is: 1,265,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,731.57 : 2,215,705.37 = 917,448 : x
  2. Step 2: Convert to fraction form
    1,605,731.57/2,215,705.37 = 917,448/x
  3. Step 3: Cross multiply
    1,605,731.57x = 2,215,705.37 × 917,448
  4. Step 4: Simplify right side
    1,605,731.57x = 2,032,794,455,708.52
  5. Step 5: Solve for x
    x = 2,032,794,455,708.52/1,605,731.57
  6. Step 6: Final answer
    x = 1,265,961.57

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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.