Home / 1,121,131.80-1,547,161.44-611,834.18

Finding the Fourth Proportional to 1,121,131.80, 1,547,161.44 and 611,834.18

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Solution

The fourth proportional to 1,121,131.80, 1,547,161.44 and 611,834.18 is: 844,330.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,131.80 : 1,547,161.44 = 611,834.18 : x
  2. Step 2: Convert to fraction form
    1,121,131.80/1,547,161.44 = 611,834.18/x
  3. Step 3: Cross multiply
    1,121,131.80x = 1,547,161.44 × 611,834.18
  4. Step 4: Simplify right side
    1,121,131.80x = 946,606,243,234.21
  5. Step 5: Solve for x
    x = 946,606,243,234.21/1,121,131.80
  6. Step 6: Final answer
    x = 844,330.92

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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.