Home / 1,429,620.20-2,144,430.30-378,996.20

Finding the Fourth Proportional to 1,429,620.20, 2,144,430.30 and 378,996.20

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Solution

The fourth proportional to 1,429,620.20, 2,144,430.30 and 378,996.20 is: 568,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,620.20 : 2,144,430.30 = 378,996.20 : x
  2. Step 2: Convert to fraction form
    1,429,620.20/2,144,430.30 = 378,996.20/x
  3. Step 3: Cross multiply
    1,429,620.20x = 2,144,430.30 × 378,996.20
  4. Step 4: Simplify right side
    1,429,620.20x = 812,730,934,864.86
  5. Step 5: Solve for x
    x = 812,730,934,864.86/1,429,620.20
  6. Step 6: Final answer
    x = 568,494.30

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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.