Home / 400,733.64-553,012.56-219,456.84

Finding the Fourth Proportional to 400,733.64, 553,012.56 and 219,456.84

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Solution

The fourth proportional to 400,733.64, 553,012.56 and 219,456.84 is: 302,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,733.64 : 553,012.56 = 219,456.84 : x
  2. Step 2: Convert to fraction form
    400,733.64/553,012.56 = 219,456.84/x
  3. Step 3: Cross multiply
    400,733.64x = 553,012.56 × 219,456.84
  4. Step 4: Simplify right side
    400,733.64x = 121,362,388,897.91
  5. Step 5: Solve for x
    x = 121,362,388,897.91/400,733.64
  6. Step 6: Final answer
    x = 302,850.51

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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.