Home / 802,607.78-1,107,712.32-496,782.56

Finding the Fourth Proportional to 802,607.78, 1,107,712.32 and 496,782.56

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Solution

The fourth proportional to 802,607.78, 1,107,712.32 and 496,782.56 is: 685,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,607.78 : 1,107,712.32 = 496,782.56 : x
  2. Step 2: Convert to fraction form
    802,607.78/1,107,712.32 = 496,782.56/x
  3. Step 3: Cross multiply
    802,607.78x = 1,107,712.32 × 496,782.56
  4. Step 4: Simplify right side
    802,607.78x = 550,292,162,073.14
  5. Step 5: Solve for x
    x = 550,292,162,073.14/802,607.78
  6. Step 6: Final answer
    x = 685,630.24

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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.