Home / 1,055,231.42-1,455,657.78-641,894.58

Finding the Fourth Proportional to 1,055,231.42, 1,455,657.78 and 641,894.58

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Solution

The fourth proportional to 1,055,231.42, 1,455,657.78 and 641,894.58 is: 885,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,231.42 : 1,455,657.78 = 641,894.58 : x
  2. Step 2: Convert to fraction form
    1,055,231.42/1,455,657.78 = 641,894.58/x
  3. Step 3: Cross multiply
    1,055,231.42x = 1,455,657.78 × 641,894.58
  4. Step 4: Simplify right side
    1,055,231.42x = 934,378,839,316.83
  5. Step 5: Solve for x
    x = 934,378,839,316.83/1,055,231.42
  6. Step 6: Final answer
    x = 885,472.91

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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.