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Finding the Fourth Proportional to 659,754.72, 910,364.72 and 369,351.20

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Solution

The fourth proportional to 659,754.72, 910,364.72 and 369,351.20 is: 509,650.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,754.72 : 910,364.72 = 369,351.20 : x
  2. Step 2: Convert to fraction form
    659,754.72/910,364.72 = 369,351.20/x
  3. Step 3: Cross multiply
    659,754.72x = 910,364.72 × 369,351.20
  4. Step 4: Simplify right side
    659,754.72x = 336,244,295,371.08
  5. Step 5: Solve for x
    x = 336,244,295,371.08/659,754.72
  6. Step 6: Final answer
    x = 509,650.46

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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.