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Finding the Fourth Proportional to 585,438.67, 807,816.13 and 330,696.91

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Solution

The fourth proportional to 585,438.67, 807,816.13 and 330,696.91 is: 456,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,438.67 : 807,816.13 = 330,696.91 : x
  2. Step 2: Convert to fraction form
    585,438.67/807,816.13 = 330,696.91/x
  3. Step 3: Cross multiply
    585,438.67x = 807,816.13 × 330,696.91
  4. Step 4: Simplify right side
    585,438.67x = 267,142,298,039.16
  5. Step 5: Solve for x
    x = 267,142,298,039.16/585,438.67
  6. Step 6: Final answer
    x = 456,311.33

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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.