Home / 1,109,121.29-1,530,658.25-625,509.98

Finding the Fourth Proportional to 1,109,121.29, 1,530,658.25 and 625,509.98

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Solution

The fourth proportional to 1,109,121.29, 1,530,658.25 and 625,509.98 is: 863,243.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,121.29 : 1,530,658.25 = 625,509.98 : x
  2. Step 2: Convert to fraction form
    1,109,121.29/1,530,658.25 = 625,509.98/x
  3. Step 3: Cross multiply
    1,109,121.29x = 1,530,658.25 × 625,509.98
  4. Step 4: Simplify right side
    1,109,121.29x = 957,442,011,344.34
  5. Step 5: Solve for x
    x = 957,442,011,344.34/1,109,121.29
  6. Step 6: Final answer
    x = 863,243.74

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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.