Home / 1,434,144.80-2,150,715.36-422,998.28

Finding the Fourth Proportional to 1,434,144.80, 2,150,715.36 and 422,998.28

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Solution

The fourth proportional to 1,434,144.80, 2,150,715.36 and 422,998.28 is: 634,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,144.80 : 2,150,715.36 = 422,998.28 : x
  2. Step 2: Convert to fraction form
    1,434,144.80/2,150,715.36 = 422,998.28/x
  3. Step 3: Cross multiply
    1,434,144.80x = 2,150,715.36 × 422,998.28
  4. Step 4: Simplify right side
    1,434,144.80x = 909,748,898,049.58
  5. Step 5: Solve for x
    x = 909,748,898,049.58/1,434,144.80
  6. Step 6: Final answer
    x = 634,349.40

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Double scale
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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.