Home / 1,276,034.50-1,913,400.78-422,798.32

Finding the Fourth Proportional to 1,276,034.50, 1,913,400.78 and 422,798.32

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Solution

The fourth proportional to 1,276,034.50, 1,913,400.78 and 422,798.32 is: 633,981.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,034.50 : 1,913,400.78 = 422,798.32 : x
  2. Step 2: Convert to fraction form
    1,276,034.50/1,913,400.78 = 422,798.32/x
  3. Step 3: Cross multiply
    1,276,034.50x = 1,913,400.78 × 422,798.32
  4. Step 4: Simplify right side
    1,276,034.50x = 808,982,635,270.69
  5. Step 5: Solve for x
    x = 808,982,635,270.69/1,276,034.50
  6. Step 6: Final answer
    x = 633,981.79

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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.