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Finding the Fourth Proportional to 651,660.24, 978,018.48 and 336,207.36

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Solution

The fourth proportional to 651,660.24, 978,018.48 and 336,207.36 is: 504,583.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,660.24 : 978,018.48 = 336,207.36 : x
  2. Step 2: Convert to fraction form
    651,660.24/978,018.48 = 336,207.36/x
  3. Step 3: Cross multiply
    651,660.24x = 978,018.48 × 336,207.36
  4. Step 4: Simplify right side
    651,660.24x = 328,817,011,192.01
  5. Step 5: Solve for x
    x = 328,817,011,192.01/651,660.24
  6. Step 6: Final answer
    x = 504,583.51

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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.