Home / 1,431,249.86-2,146,955.20-458,698.78

Finding the Fourth Proportional to 1,431,249.86, 2,146,955.20 and 458,698.78

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Solution

The fourth proportional to 1,431,249.86, 2,146,955.20 and 458,698.78 is: 688,073.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,249.86 : 2,146,955.20 = 458,698.78 : x
  2. Step 2: Convert to fraction form
    1,431,249.86/2,146,955.20 = 458,698.78/x
  3. Step 3: Cross multiply
    1,431,249.86x = 2,146,955.20 × 458,698.78
  4. Step 4: Simplify right side
    1,431,249.86x = 984,805,730,954.66
  5. Step 5: Solve for x
    x = 984,805,730,954.66/1,431,249.86
  6. Step 6: Final answer
    x = 688,073.94

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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.