Home / 1,432,177.32-1,976,455.44-787,647.36

Finding the Fourth Proportional to 1,432,177.32, 1,976,455.44 and 787,647.36

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Solution

The fourth proportional to 1,432,177.32, 1,976,455.44 and 787,647.36 is: 1,086,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,177.32 : 1,976,455.44 = 787,647.36 : x
  2. Step 2: Convert to fraction form
    1,432,177.32/1,976,455.44 = 787,647.36/x
  3. Step 3: Cross multiply
    1,432,177.32x = 1,976,455.44 × 787,647.36
  4. Step 4: Simplify right side
    1,432,177.32x = 1,556,749,909,473.64
  5. Step 5: Solve for x
    x = 1,556,749,909,473.64/1,432,177.32
  6. Step 6: Final answer
    x = 1,086,981.26

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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.