Home / 420,897.16-580,816.74-229,873.96

Finding the Fourth Proportional to 420,897.16, 580,816.74 and 229,873.96

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Solution

The fourth proportional to 420,897.16, 580,816.74 and 229,873.96 is: 317,214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,897.16 : 580,816.74 = 229,873.96 : x
  2. Step 2: Convert to fraction form
    420,897.16/580,816.74 = 229,873.96/x
  3. Step 3: Cross multiply
    420,897.16x = 580,816.74 × 229,873.96
  4. Step 4: Simplify right side
    420,897.16x = 133,514,644,058.09
  5. Step 5: Solve for x
    x = 133,514,644,058.09/420,897.16
  6. Step 6: Final answer
    x = 317,214.41

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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.