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Finding the Fourth Proportional to 849,327, 1,274,187.36 and 288,361.50

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Solution

The fourth proportional to 849,327, 1,274,187.36 and 288,361.50 is: 432,609.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,327 : 1,274,187.36 = 288,361.50 : x
  2. Step 2: Convert to fraction form
    849,327/1,274,187.36 = 288,361.50/x
  3. Step 3: Cross multiply
    849,327x = 1,274,187.36 × 288,361.50
  4. Step 4: Simplify right side
    849,327x = 367,426,578,410.64
  5. Step 5: Solve for x
    x = 367,426,578,410.64/849,327
  6. Step 6: Final answer
    x = 432,609.09

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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.