Home / 419,835.34-579,372.90-238,547.50

Finding the Fourth Proportional to 419,835.34, 579,372.90 and 238,547.50

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Solution

The fourth proportional to 419,835.34, 579,372.90 and 238,547.50 is: 329,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,835.34 : 579,372.90 = 238,547.50 : x
  2. Step 2: Convert to fraction form
    419,835.34/579,372.90 = 238,547.50/x
  3. Step 3: Cross multiply
    419,835.34x = 579,372.90 × 238,547.50
  4. Step 4: Simplify right side
    419,835.34x = 138,207,956,862.75
  5. Step 5: Solve for x
    x = 138,207,956,862.75/419,835.34
  6. Step 6: Final answer
    x = 329,195.62

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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.