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Finding the Fourth Proportional to 585,448.78, 807,908.80 and 330,794.50

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Solution

The fourth proportional to 585,448.78, 807,908.80 and 330,794.50 is: 456,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,448.78 : 807,908.80 = 330,794.50 : x
  2. Step 2: Convert to fraction form
    585,448.78/807,908.80 = 330,794.50/x
  3. Step 3: Cross multiply
    585,448.78x = 807,908.80 × 330,794.50
  4. Step 4: Simplify right side
    585,448.78x = 267,251,787,541.60
  5. Step 5: Solve for x
    x = 267,251,787,541.60/585,448.78
  6. Step 6: Final answer
    x = 456,490.47

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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.