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Finding the Fourth Proportional to 663,258, 915,302.52 and 361,458.48

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Solution

The fourth proportional to 663,258, 915,302.52 and 361,458.48 is: 498,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,258 : 915,302.52 = 361,458.48 : x
  2. Step 2: Convert to fraction form
    663,258/915,302.52 = 361,458.48/x
  3. Step 3: Cross multiply
    663,258x = 915,302.52 × 361,458.48
  4. Step 4: Simplify right side
    663,258x = 330,843,857,619.37
  5. Step 5: Solve for x
    x = 330,843,857,619.37/663,258
  6. Step 6: Final answer
    x = 498,816.23

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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.