Home / 999,606.94-1,378,022.76-712,628.80

Finding the Fourth Proportional to 999,606.94, 1,378,022.76 and 712,628.80

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Solution

The fourth proportional to 999,606.94, 1,378,022.76 and 712,628.80 is: 982,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,606.94 : 1,378,022.76 = 712,628.80 : x
  2. Step 2: Convert to fraction form
    999,606.94/1,378,022.76 = 712,628.80/x
  3. Step 3: Cross multiply
    999,606.94x = 1,378,022.76 × 712,628.80
  4. Step 4: Simplify right side
    999,606.94x = 982,018,702,386.43
  5. Step 5: Solve for x
    x = 982,018,702,386.43/999,606.94
  6. Step 6: Final answer
    x = 982,404.85

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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.