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Finding the Fourth Proportional to 689,310.98, 950,194.89 and 484,804.61

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Solution

The fourth proportional to 689,310.98, 950,194.89 and 484,804.61 is: 668,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,310.98 : 950,194.89 = 484,804.61 : x
  2. Step 2: Convert to fraction form
    689,310.98/950,194.89 = 484,804.61/x
  3. Step 3: Cross multiply
    689,310.98x = 950,194.89 × 484,804.61
  4. Step 4: Simplify right side
    689,310.98x = 460,658,858,319.47
  5. Step 5: Solve for x
    x = 460,658,858,319.47/689,310.98
  6. Step 6: Final answer
    x = 668,288.88

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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.