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Finding the Fourth Proportional to 659,424.54, 910,054.80 and 369,065.28

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Solution

The fourth proportional to 659,424.54, 910,054.80 and 369,065.28 is: 509,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,424.54 : 910,054.80 = 369,065.28 : x
  2. Step 2: Convert to fraction form
    659,424.54/910,054.80 = 369,065.28/x
  3. Step 3: Cross multiply
    659,424.54x = 910,054.80 × 369,065.28
  4. Step 4: Simplify right side
    659,424.54x = 335,869,629,577.34
  5. Step 5: Solve for x
    x = 335,869,629,577.34/659,424.54
  6. Step 6: Final answer
    x = 509,337.47

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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.