Home / 418,904.60-578,090.88-227,919.44

Finding the Fourth Proportional to 418,904.60, 578,090.88 and 227,919.44

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Solution

The fourth proportional to 418,904.60, 578,090.88 and 227,919.44 is: 314,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,904.60 : 578,090.88 = 227,919.44 : x
  2. Step 2: Convert to fraction form
    418,904.60/578,090.88 = 227,919.44/x
  3. Step 3: Cross multiply
    418,904.60x = 578,090.88 × 227,919.44
  4. Step 4: Simplify right side
    418,904.60x = 131,758,149,638.71
  5. Step 5: Solve for x
    x = 131,758,149,638.71/418,904.60
  6. Step 6: Final answer
    x = 314,530.20

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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.