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Finding the Fourth Proportional to 646,433.93, 969,326.49 and 376,649.26

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Solution

The fourth proportional to 646,433.93, 969,326.49 and 376,649.26 is: 564,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,433.93 : 969,326.49 = 376,649.26 : x
  2. Step 2: Convert to fraction form
    646,433.93/969,326.49 = 376,649.26/x
  3. Step 3: Cross multiply
    646,433.93x = 969,326.49 × 376,649.26
  4. Step 4: Simplify right side
    646,433.93x = 365,096,104,146.02
  5. Step 5: Solve for x
    x = 365,096,104,146.02/646,433.93
  6. Step 6: Final answer
    x = 564,784.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.