Home / 1,101,105.42-1,518,648.93-909,786.66

Finding the Fourth Proportional to 1,101,105.42, 1,518,648.93 and 909,786.66

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Solution

The fourth proportional to 1,101,105.42, 1,518,648.93 and 909,786.66 is: 1,254,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,105.42 : 1,518,648.93 = 909,786.66 : x
  2. Step 2: Convert to fraction form
    1,101,105.42/1,518,648.93 = 909,786.66/x
  3. Step 3: Cross multiply
    1,101,105.42x = 1,518,648.93 × 909,786.66
  4. Step 4: Simplify right side
    1,101,105.42x = 1,381,646,537,737.27
  5. Step 5: Solve for x
    x = 1,381,646,537,737.27/1,101,105.42
  6. Step 6: Final answer
    x = 1,254,781.34

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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.