Home / 420,027.50-579,652.54-238,747.08

Finding the Fourth Proportional to 420,027.50, 579,652.54 and 238,747.08

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Solution

The fourth proportional to 420,027.50, 579,652.54 and 238,747.08 is: 329,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,027.50 : 579,652.54 = 238,747.08 : x
  2. Step 2: Convert to fraction form
    420,027.50/579,652.54 = 238,747.08/x
  3. Step 3: Cross multiply
    420,027.50x = 579,652.54 × 238,747.08
  4. Step 4: Simplify right side
    420,027.50x = 138,390,351,339.58
  5. Step 5: Solve for x
    x = 138,390,351,339.58/420,027.50
  6. Step 6: Final answer
    x = 329,479.26

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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.