Home / 781,044.51-1,171,337.13-331,761.81

Finding the Fourth Proportional to 781,044.51, 1,171,337.13 and 331,761.81

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Solution

The fourth proportional to 781,044.51, 1,171,337.13 and 331,761.81 is: 497,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,044.51 : 1,171,337.13 = 331,761.81 : x
  2. Step 2: Convert to fraction form
    781,044.51/1,171,337.13 = 331,761.81/x
  3. Step 3: Cross multiply
    781,044.51x = 1,171,337.13 × 331,761.81
  4. Step 4: Simplify right side
    781,044.51x = 388,604,926,369.01
  5. Step 5: Solve for x
    x = 388,604,926,369.01/781,044.51
  6. Step 6: Final answer
    x = 497,545.17

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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.