Home / 420,213.70-579,943.29-233,963.92

Finding the Fourth Proportional to 420,213.70, 579,943.29 and 233,963.92

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Solution

The fourth proportional to 420,213.70, 579,943.29 and 233,963.92 is: 322,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,213.70 : 579,943.29 = 233,963.92 : x
  2. Step 2: Convert to fraction form
    420,213.70/579,943.29 = 233,963.92/x
  3. Step 3: Cross multiply
    420,213.70x = 579,943.29 × 233,963.92
  4. Step 4: Simplify right side
    420,213.70x = 135,685,805,506.10
  5. Step 5: Solve for x
    x = 135,685,805,506.10/420,213.70
  6. Step 6: Final answer
    x = 322,897.15

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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.