Home / 420,002.96-579,583.08-238,690.94

Finding the Fourth Proportional to 420,002.96, 579,583.08 and 238,690.94

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Solution

The fourth proportional to 420,002.96, 579,583.08 and 238,690.94 is: 329,381.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,002.96 : 579,583.08 = 238,690.94 : x
  2. Step 2: Convert to fraction form
    420,002.96/579,583.08 = 238,690.94/x
  3. Step 3: Cross multiply
    420,002.96x = 579,583.08 × 238,690.94
  4. Step 4: Simplify right side
    420,002.96x = 138,341,227,275.38
  5. Step 5: Solve for x
    x = 138,341,227,275.38/420,002.96
  6. Step 6: Final answer
    x = 329,381.56

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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.