Home / 400,974.74-553,345.13-219,693.54

Finding the Fourth Proportional to 400,974.74, 553,345.13 and 219,693.54

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Solution

The fourth proportional to 400,974.74, 553,345.13 and 219,693.54 is: 303,177.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,974.74 : 553,345.13 = 219,693.54 : x
  2. Step 2: Convert to fraction form
    400,974.74/553,345.13 = 219,693.54/x
  3. Step 3: Cross multiply
    400,974.74x = 553,345.13 × 219,693.54
  4. Step 4: Simplify right side
    400,974.74x = 121,566,348,925.65
  5. Step 5: Solve for x
    x = 121,566,348,925.65/400,974.74
  6. Step 6: Final answer
    x = 303,177.07

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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.