Home / 420,946.74-580,906.89-229,963.32

Finding the Fourth Proportional to 420,946.74, 580,906.89 and 229,963.32

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Solution

The fourth proportional to 420,946.74, 580,906.89 and 229,963.32 is: 317,349.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,946.74 : 580,906.89 = 229,963.32 : x
  2. Step 2: Convert to fraction form
    420,946.74/580,906.89 = 229,963.32/x
  3. Step 3: Cross multiply
    420,946.74x = 580,906.89 × 229,963.32
  4. Step 4: Simplify right side
    420,946.74x = 133,587,277,035.28
  5. Step 5: Solve for x
    x = 133,587,277,035.28/420,946.74
  6. Step 6: Final answer
    x = 317,349.59

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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.