Home / 999,367.28-1,378,491.91-655,225.52

Finding the Fourth Proportional to 999,367.28, 1,378,491.91 and 655,225.52

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Solution

The fourth proportional to 999,367.28, 1,378,491.91 and 655,225.52 is: 903,794.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,367.28 : 1,378,491.91 = 655,225.52 : x
  2. Step 2: Convert to fraction form
    999,367.28/1,378,491.91 = 655,225.52/x
  3. Step 3: Cross multiply
    999,367.28x = 1,378,491.91 × 655,225.52
  4. Step 4: Simplify right side
    999,367.28x = 903,223,078,545.54
  5. Step 5: Solve for x
    x = 903,223,078,545.54/999,367.28
  6. Step 6: Final answer
    x = 903,794.93

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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.