Home / 418,819.18-578,184.51-323,111.02

Finding the Fourth Proportional to 418,819.18, 578,184.51 and 323,111.02

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Solution

The fourth proportional to 418,819.18, 578,184.51 and 323,111.02 is: 446,058.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,819.18 : 578,184.51 = 323,111.02 : x
  2. Step 2: Convert to fraction form
    418,819.18/578,184.51 = 323,111.02/x
  3. Step 3: Cross multiply
    418,819.18x = 578,184.51 × 323,111.02
  4. Step 4: Simplify right side
    418,819.18x = 186,817,786,774.30
  5. Step 5: Solve for x
    x = 186,817,786,774.30/418,819.18
  6. Step 6: Final answer
    x = 446,058.34

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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.