Home / 1,008,946.50-1,391,558.49-646,404

Finding the Fourth Proportional to 1,008,946.50, 1,391,558.49 and 646,404

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Solution

The fourth proportional to 1,008,946.50, 1,391,558.49 and 646,404 is: 891,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,946.50 : 1,391,558.49 = 646,404 : x
  2. Step 2: Convert to fraction form
    1,008,946.50/1,391,558.49 = 646,404/x
  3. Step 3: Cross multiply
    1,008,946.50x = 1,391,558.49 × 646,404
  4. Step 4: Simplify right side
    1,008,946.50x = 899,508,974,169.96
  5. Step 5: Solve for x
    x = 899,508,974,169.96/1,008,946.50
  6. Step 6: Final answer
    x = 891,532.88

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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.