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Finding the Fourth Proportional to 651,654.24, 978,009.48 and 336,201.36

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Solution

The fourth proportional to 651,654.24, 978,009.48 and 336,201.36 is: 504,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,654.24 : 978,009.48 = 336,201.36 : x
  2. Step 2: Convert to fraction form
    651,654.24/978,009.48 = 336,201.36/x
  3. Step 3: Cross multiply
    651,654.24x = 978,009.48 × 336,201.36
  4. Step 4: Simplify right side
    651,654.24x = 328,808,117,268.89
  5. Step 5: Solve for x
    x = 328,808,117,268.89/651,654.24
  6. Step 6: Final answer
    x = 504,574.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.