Home / 1,432,189.16-1,976,381.64-787,609.36

Finding the Fourth Proportional to 1,432,189.16, 1,976,381.64 and 787,609.36

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Solution

The fourth proportional to 1,432,189.16, 1,976,381.64 and 787,609.36 is: 1,086,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,189.16 : 1,976,381.64 = 787,609.36 : x
  2. Step 2: Convert to fraction form
    1,432,189.16/1,976,381.64 = 787,609.36/x
  3. Step 3: Cross multiply
    1,432,189.16x = 1,976,381.64 × 787,609.36
  4. Step 4: Simplify right side
    1,432,189.16x = 1,556,616,678,596.15
  5. Step 5: Solve for x
    x = 1,556,616,678,596.15/1,432,189.16
  6. Step 6: Final answer
    x = 1,086,879.25

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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.