Home / 420,217.24-579,948.06-233,967.64

Finding the Fourth Proportional to 420,217.24, 579,948.06 and 233,967.64

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Solution

The fourth proportional to 420,217.24, 579,948.06 and 233,967.64 is: 322,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,217.24 : 579,948.06 = 233,967.64 : x
  2. Step 2: Convert to fraction form
    420,217.24/579,948.06 = 233,967.64/x
  3. Step 3: Cross multiply
    420,217.24x = 579,948.06 × 233,967.64
  4. Step 4: Simplify right side
    420,217.24x = 135,689,078,920.78
  5. Step 5: Solve for x
    x = 135,689,078,920.78/420,217.24
  6. Step 6: Final answer
    x = 322,902.22

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1.5x scale

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.