Home / 999,364.28-1,378,487.78-655,222.52

Finding the Fourth Proportional to 999,364.28, 1,378,487.78 and 655,222.52

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Solution

The fourth proportional to 999,364.28, 1,378,487.78 and 655,222.52 is: 903,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,364.28 : 1,378,487.78 = 655,222.52 : x
  2. Step 2: Convert to fraction form
    999,364.28/1,378,487.78 = 655,222.52/x
  3. Step 3: Cross multiply
    999,364.28x = 1,378,487.78 × 655,222.52
  4. Step 4: Simplify right side
    999,364.28x = 903,216,226,832.25
  5. Step 5: Solve for x
    x = 903,216,226,832.25/999,364.28
  6. Step 6: Final answer
    x = 903,790.79

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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.