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Finding the Fourth Proportional to 876,649.50, 1,209,776.31 and 474,241.50

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Solution

The fourth proportional to 876,649.50, 1,209,776.31 and 474,241.50 is: 654,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,649.50 : 1,209,776.31 = 474,241.50 : x
  2. Step 2: Convert to fraction form
    876,649.50/1,209,776.31 = 474,241.50/x
  3. Step 3: Cross multiply
    876,649.50x = 1,209,776.31 × 474,241.50
  4. Step 4: Simplify right side
    876,649.50x = 573,726,131,918.87
  5. Step 5: Solve for x
    x = 573,726,131,918.87/876,649.50
  6. Step 6: Final answer
    x = 654,453.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.