Home / 729,539.56-1,006,768.74-427,738.60

Finding the Fourth Proportional to 729,539.56, 1,006,768.74 and 427,738.60

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Solution

The fourth proportional to 729,539.56, 1,006,768.74 and 427,738.60 is: 590,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,539.56 : 1,006,768.74 = 427,738.60 : x
  2. Step 2: Convert to fraction form
    729,539.56/1,006,768.74 = 427,738.60/x
  3. Step 3: Cross multiply
    729,539.56x = 1,006,768.74 × 427,738.60
  4. Step 4: Simplify right side
    729,539.56x = 430,633,851,371.36
  5. Step 5: Solve for x
    x = 430,633,851,371.36/729,539.56
  6. Step 6: Final answer
    x = 590,281.70

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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.