Home / 667,291.12-920,824.56-376,962.26

Finding the Fourth Proportional to 667,291.12, 920,824.56 and 376,962.26

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Solution

The fourth proportional to 667,291.12, 920,824.56 and 376,962.26 is: 520,186.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,291.12 : 920,824.56 = 376,962.26 : x
  2. Step 2: Convert to fraction form
    667,291.12/920,824.56 = 376,962.26/x
  3. Step 3: Cross multiply
    667,291.12x = 920,824.56 × 376,962.26
  4. Step 4: Simplify right side
    667,291.12x = 347,116,102,862.04
  5. Step 5: Solve for x
    x = 347,116,102,862.04/667,291.12
  6. Step 6: Final answer
    x = 520,186.91

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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.