Home / 766,622.45-1,057,924.71-422,490.26

Finding the Fourth Proportional to 766,622.45, 1,057,924.71 and 422,490.26

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Solution

The fourth proportional to 766,622.45, 1,057,924.71 and 422,490.26 is: 583,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,622.45 : 1,057,924.71 = 422,490.26 : x
  2. Step 2: Convert to fraction form
    766,622.45/1,057,924.71 = 422,490.26/x
  3. Step 3: Cross multiply
    766,622.45x = 1,057,924.71 × 422,490.26
  4. Step 4: Simplify right side
    766,622.45x = 446,962,880,498.70
  5. Step 5: Solve for x
    x = 446,962,880,498.70/766,622.45
  6. Step 6: Final answer
    x = 583,028.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.