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Finding the Fourth Proportional to 662,630.24, 914,468.22 and 498,993.80

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Solution

The fourth proportional to 662,630.24, 914,468.22 and 498,993.80 is: 688,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,630.24 : 914,468.22 = 498,993.80 : x
  2. Step 2: Convert to fraction form
    662,630.24/914,468.22 = 498,993.80/x
  3. Step 3: Cross multiply
    662,630.24x = 914,468.22 × 498,993.80
  4. Step 4: Simplify right side
    662,630.24x = 456,313,972,077.04
  5. Step 5: Solve for x
    x = 456,313,972,077.04/662,630.24
  6. Step 6: Final answer
    x = 688,640.43

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1.5x scale

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.