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Finding the Fourth Proportional to 420,360.67, 580,111.73 and 229,384.54

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Solution

The fourth proportional to 420,360.67, 580,111.73 and 229,384.54 is: 316,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,360.67 : 580,111.73 = 229,384.54 : x
  2. Step 2: Convert to fraction form
    420,360.67/580,111.73 = 229,384.54/x
  3. Step 3: Cross multiply
    420,360.67x = 580,111.73 × 229,384.54
  4. Step 4: Simplify right side
    420,360.67x = 133,068,662,334.65
  5. Step 5: Solve for x
    x = 133,068,662,334.65/420,360.67
  6. Step 6: Final answer
    x = 316,558.31

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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.