Home / 420,205.01-579,887.10-229,222.40

Finding the Fourth Proportional to 420,205.01, 579,887.10 and 229,222.40

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Solution

The fourth proportional to 420,205.01, 579,887.10 and 229,222.40 is: 316,329.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,205.01 : 579,887.10 = 229,222.40 : x
  2. Step 2: Convert to fraction form
    420,205.01/579,887.10 = 229,222.40/x
  3. Step 3: Cross multiply
    420,205.01x = 579,887.10 × 229,222.40
  4. Step 4: Simplify right side
    420,205.01x = 132,923,109,891.61
  5. Step 5: Solve for x
    x = 132,923,109,891.61/420,205.01
  6. Step 6: Final answer
    x = 316,329.19

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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.