Home / 1,016,035.89-1,521,064.17-678,238.71

Finding the Fourth Proportional to 1,016,035.89, 1,521,064.17 and 678,238.71

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Solution

The fourth proportional to 1,016,035.89, 1,521,064.17 and 678,238.71 is: 1,015,362.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,035.89 : 1,521,064.17 = 678,238.71 : x
  2. Step 2: Convert to fraction form
    1,016,035.89/1,521,064.17 = 678,238.71/x
  3. Step 3: Cross multiply
    1,016,035.89x = 1,521,064.17 × 678,238.71
  4. Step 4: Simplify right side
    1,016,035.89x = 1,031,644,600,488.02
  5. Step 5: Solve for x
    x = 1,031,644,600,488.02/1,016,035.89
  6. Step 6: Final answer
    x = 1,015,362.36

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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.