Home / 763,187.66-1,144,781.48-289,871.85

Finding the Fourth Proportional to 763,187.66, 1,144,781.48 and 289,871.85

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Solution

The fourth proportional to 763,187.66, 1,144,781.48 and 289,871.85 is: 434,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,187.66 : 1,144,781.48 = 289,871.85 : x
  2. Step 2: Convert to fraction form
    763,187.66/1,144,781.48 = 289,871.85/x
  3. Step 3: Cross multiply
    763,187.66x = 1,144,781.48 × 289,871.85
  4. Step 4: Simplify right side
    763,187.66x = 331,839,926,178.02
  5. Step 5: Solve for x
    x = 331,839,926,178.02/763,187.66
  6. Step 6: Final answer
    x = 434,807.78

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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.