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Finding the Fourth Proportional to 689,329.63, 950,807.32 and 447,179.46

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Solution

The fourth proportional to 689,329.63, 950,807.32 and 447,179.46 is: 616,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,329.63 : 950,807.32 = 447,179.46 : x
  2. Step 2: Convert to fraction form
    689,329.63/950,807.32 = 447,179.46/x
  3. Step 3: Cross multiply
    689,329.63x = 950,807.32 × 447,179.46
  4. Step 4: Simplify right side
    689,329.63x = 425,181,503,921.65
  5. Step 5: Solve for x
    x = 425,181,503,921.65/689,329.63
  6. Step 6: Final answer
    x = 616,804.33

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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.