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Finding the Fourth Proportional to 723,791.70, 998,683.02 and 417,862.80

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Solution

The fourth proportional to 723,791.70, 998,683.02 and 417,862.80 is: 576,564.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,791.70 : 998,683.02 = 417,862.80 : x
  2. Step 2: Convert to fraction form
    723,791.70/998,683.02 = 417,862.80/x
  3. Step 3: Cross multiply
    723,791.70x = 998,683.02 × 417,862.80
  4. Step 4: Simplify right side
    723,791.70x = 417,312,483,049.66
  5. Step 5: Solve for x
    x = 417,312,483,049.66/723,791.70
  6. Step 6: Final answer
    x = 576,564.34

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1.5x scale

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.