Home / 655,708.08-904,977.56-397,626.96

Finding the Fourth Proportional to 655,708.08, 904,977.56 and 397,626.96

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Solution

The fourth proportional to 655,708.08, 904,977.56 and 397,626.96 is: 548,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,708.08 : 904,977.56 = 397,626.96 : x
  2. Step 2: Convert to fraction form
    655,708.08/904,977.56 = 397,626.96/x
  3. Step 3: Cross multiply
    655,708.08x = 904,977.56 × 397,626.96
  4. Step 4: Simplify right side
    655,708.08x = 359,843,476,051.02
  5. Step 5: Solve for x
    x = 359,843,476,051.02/655,708.08
  6. Step 6: Final answer
    x = 548,786.09

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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.