Home / 1,276,722.14-1,915,363.26-378,234.12

Finding the Fourth Proportional to 1,276,722.14, 1,915,363.26 and 378,234.12

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Solution

The fourth proportional to 1,276,722.14, 1,915,363.26 and 378,234.12 is: 567,434.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,722.14 : 1,915,363.26 = 378,234.12 : x
  2. Step 2: Convert to fraction form
    1,276,722.14/1,915,363.26 = 378,234.12/x
  3. Step 3: Cross multiply
    1,276,722.14x = 1,915,363.26 × 378,234.12
  4. Step 4: Simplify right side
    1,276,722.14x = 724,455,737,126.43
  5. Step 5: Solve for x
    x = 724,455,737,126.43/1,276,722.14
  6. Step 6: Final answer
    x = 567,434.15

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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.