Home / 420,240.88-579,887.69-236,476.24

Finding the Fourth Proportional to 420,240.88, 579,887.69 and 236,476.24

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Solution

The fourth proportional to 420,240.88, 579,887.69 and 236,476.24 is: 326,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,240.88 : 579,887.69 = 236,476.24 : x
  2. Step 2: Convert to fraction form
    420,240.88/579,887.69 = 236,476.24/x
  3. Step 3: Cross multiply
    420,240.88x = 579,887.69 × 236,476.24
  4. Step 4: Simplify right side
    420,240.88x = 137,129,660,553.49
  5. Step 5: Solve for x
    x = 137,129,660,553.49/420,240.88
  6. Step 6: Final answer
    x = 326,312.04

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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.