Home / 1,016,040.77-1,521,071.48-678,243.59

Finding the Fourth Proportional to 1,016,040.77, 1,521,071.48 and 678,243.59

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Solution

The fourth proportional to 1,016,040.77, 1,521,071.48 and 678,243.59 is: 1,015,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,040.77 : 1,521,071.48 = 678,243.59 : x
  2. Step 2: Convert to fraction form
    1,016,040.77/1,521,071.48 = 678,243.59/x
  3. Step 3: Cross multiply
    1,016,040.77x = 1,521,071.48 × 678,243.59
  4. Step 4: Simplify right side
    1,016,040.77x = 1,031,656,970,245.24
  5. Step 5: Solve for x
    x = 1,031,656,970,245.24/1,016,040.77
  6. Step 6: Final answer
    x = 1,015,369.66

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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.