Home / 420,210.73-579,887.07-229,220.02

Finding the Fourth Proportional to 420,210.73, 579,887.07 and 229,220.02

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Solution

The fourth proportional to 420,210.73, 579,887.07 and 229,220.02 is: 316,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,210.73 : 579,887.07 = 229,220.02 : x
  2. Step 2: Convert to fraction form
    420,210.73/579,887.07 = 229,220.02/x
  3. Step 3: Cross multiply
    420,210.73x = 579,887.07 × 229,220.02
  4. Step 4: Simplify right side
    420,210.73x = 132,921,725,783.14
  5. Step 5: Solve for x
    x = 132,921,725,783.14/420,210.73
  6. Step 6: Final answer
    x = 316,321.59

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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.