Home / 1,078,954.28-1,489,553.52-649,340

Finding the Fourth Proportional to 1,078,954.28, 1,489,553.52 and 649,340

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Solution

The fourth proportional to 1,078,954.28, 1,489,553.52 and 649,340 is: 896,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,954.28 : 1,489,553.52 = 649,340 : x
  2. Step 2: Convert to fraction form
    1,078,954.28/1,489,553.52 = 649,340/x
  3. Step 3: Cross multiply
    1,078,954.28x = 1,489,553.52 × 649,340
  4. Step 4: Simplify right side
    1,078,954.28x = 967,226,682,676.80
  5. Step 5: Solve for x
    x = 967,226,682,676.80/1,078,954.28
  6. Step 6: Final answer
    x = 896,448.26

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Double scale
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Similar ratio
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1.5x scale

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.