Home / 420,247.27-579,938.54-238,959.24

Finding the Fourth Proportional to 420,247.27, 579,938.54 and 238,959.24

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Solution

The fourth proportional to 420,247.27, 579,938.54 and 238,959.24 is: 329,762.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,247.27 : 579,938.54 = 238,959.24 : x
  2. Step 2: Convert to fraction form
    420,247.27/579,938.54 = 238,959.24/x
  3. Step 3: Cross multiply
    420,247.27x = 579,938.54 × 238,959.24
  4. Step 4: Simplify right side
    420,247.27x = 138,581,671,570.31
  5. Step 5: Solve for x
    x = 138,581,671,570.31/420,247.27
  6. Step 6: Final answer
    x = 329,762.22

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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.