Home / 644,824.80-967,237.20-349,912.80

Finding the Fourth Proportional to 644,824.80, 967,237.20 and 349,912.80

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Solution

The fourth proportional to 644,824.80, 967,237.20 and 349,912.80 is: 524,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,824.80 : 967,237.20 = 349,912.80 : x
  2. Step 2: Convert to fraction form
    644,824.80/967,237.20 = 349,912.80/x
  3. Step 3: Cross multiply
    644,824.80x = 967,237.20 × 349,912.80
  4. Step 4: Simplify right side
    644,824.80x = 338,448,676,916.16
  5. Step 5: Solve for x
    x = 338,448,676,916.16/644,824.80
  6. Step 6: Final answer
    x = 524,869.20

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.