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Finding the Fourth Proportional to 586,875.32, 809,891.31 and 345,168.08

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Solution

The fourth proportional to 586,875.32, 809,891.31 and 345,168.08 is: 476,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,875.32 : 809,891.31 = 345,168.08 : x
  2. Step 2: Convert to fraction form
    586,875.32/809,891.31 = 345,168.08/x
  3. Step 3: Cross multiply
    586,875.32x = 809,891.31 × 345,168.08
  4. Step 4: Simplify right side
    586,875.32x = 279,548,628,481.39
  5. Step 5: Solve for x
    x = 279,548,628,481.39/586,875.32
  6. Step 6: Final answer
    x = 476,333.93

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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.