Home / 420,092.32-579,704.28-238,779.04

Finding the Fourth Proportional to 420,092.32, 579,704.28 and 238,779.04

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Solution

The fourth proportional to 420,092.32, 579,704.28 and 238,779.04 is: 329,501.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,092.32 : 579,704.28 = 238,779.04 : x
  2. Step 2: Convert to fraction form
    420,092.32/579,704.28 = 238,779.04/x
  3. Step 3: Cross multiply
    420,092.32x = 579,704.28 × 238,779.04
  4. Step 4: Simplify right side
    420,092.32x = 138,421,231,462.29
  5. Step 5: Solve for x
    x = 138,421,231,462.29/420,092.32
  6. Step 6: Final answer
    x = 329,501.93

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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.