Home / 766,339.30-1,057,580.85-426,807.55

Finding the Fourth Proportional to 766,339.30, 1,057,580.85 and 426,807.55

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Solution

The fourth proportional to 766,339.30, 1,057,580.85 and 426,807.55 is: 589,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,339.30 : 1,057,580.85 = 426,807.55 : x
  2. Step 2: Convert to fraction form
    766,339.30/1,057,580.85 = 426,807.55/x
  3. Step 3: Cross multiply
    766,339.30x = 1,057,580.85 × 426,807.55
  4. Step 4: Simplify right side
    766,339.30x = 451,383,491,515.42
  5. Step 5: Solve for x
    x = 451,383,491,515.42/766,339.30
  6. Step 6: Final answer
    x = 589,012.58

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1.5x scale

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.