Home / 1,116,118.96-1,537,640.40-775,996.72

Finding the Fourth Proportional to 1,116,118.96, 1,537,640.40 and 775,996.72

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Solution

The fourth proportional to 1,116,118.96, 1,537,640.40 and 775,996.72 is: 1,069,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,118.96 : 1,537,640.40 = 775,996.72 : x
  2. Step 2: Convert to fraction form
    1,116,118.96/1,537,640.40 = 775,996.72/x
  3. Step 3: Cross multiply
    1,116,118.96x = 1,537,640.40 × 775,996.72
  4. Step 4: Simplify right side
    1,116,118.96x = 1,193,203,906,939.49
  5. Step 5: Solve for x
    x = 1,193,203,906,939.49/1,116,118.96
  6. Step 6: Final answer
    x = 1,069,065.17

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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.