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Finding the Fourth Proportional to 632,339.68, 872,629.32 and 356,701

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Solution

The fourth proportional to 632,339.68, 872,629.32 and 356,701 is: 492,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,339.68 : 872,629.32 = 356,701 : x
  2. Step 2: Convert to fraction form
    632,339.68/872,629.32 = 356,701/x
  3. Step 3: Cross multiply
    632,339.68x = 872,629.32 × 356,701
  4. Step 4: Simplify right side
    632,339.68x = 311,267,751,073.32
  5. Step 5: Solve for x
    x = 311,267,751,073.32/632,339.68
  6. Step 6: Final answer
    x = 492,247.70

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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.