Home / 766,388.43-1,057,635.09-426,862.35

Finding the Fourth Proportional to 766,388.43, 1,057,635.09 and 426,862.35

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Solution

The fourth proportional to 766,388.43, 1,057,635.09 and 426,862.35 is: 589,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,388.43 : 1,057,635.09 = 426,862.35 : x
  2. Step 2: Convert to fraction form
    766,388.43/1,057,635.09 = 426,862.35/x
  3. Step 3: Cross multiply
    766,388.43x = 1,057,635.09 × 426,862.35
  4. Step 4: Simplify right side
    766,388.43x = 451,464,599,959.86
  5. Step 5: Solve for x
    x = 451,464,599,959.86/766,388.43
  6. Step 6: Final answer
    x = 589,080.66

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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.