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Finding the Fourth Proportional to 691,633.25, 954,453.89 and 373,681.25

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Solution

The fourth proportional to 691,633.25, 954,453.89 and 373,681.25 is: 515,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,633.25 : 954,453.89 = 373,681.25 : x
  2. Step 2: Convert to fraction form
    691,633.25/954,453.89 = 373,681.25/x
  3. Step 3: Cross multiply
    691,633.25x = 954,453.89 × 373,681.25
  4. Step 4: Simplify right side
    691,633.25x = 356,661,520,814.16
  5. Step 5: Solve for x
    x = 356,661,520,814.16/691,633.25
  6. Step 6: Final answer
    x = 515,680.13

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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.