Home / 429,000.90-643,670.84-162,832.06

Finding the Fourth Proportional to 429,000.90, 643,670.84 and 162,832.06

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Solution

The fourth proportional to 429,000.90, 643,670.84 and 162,832.06 is: 244,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,000.90 : 643,670.84 = 162,832.06 : x
  2. Step 2: Convert to fraction form
    429,000.90/643,670.84 = 162,832.06/x
  3. Step 3: Cross multiply
    429,000.90x = 643,670.84 × 162,832.06
  4. Step 4: Simplify right side
    429,000.90x = 104,810,248,839.13
  5. Step 5: Solve for x
    x = 104,810,248,839.13/429,000.90
  6. Step 6: Final answer
    x = 244,312.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.