Home / 745,079.55-1,028,181.21-422,770.41

Finding the Fourth Proportional to 745,079.55, 1,028,181.21 and 422,770.41

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Solution

The fourth proportional to 745,079.55, 1,028,181.21 and 422,770.41 is: 583,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,079.55 : 1,028,181.21 = 422,770.41 : x
  2. Step 2: Convert to fraction form
    745,079.55/1,028,181.21 = 422,770.41/x
  3. Step 3: Cross multiply
    745,079.55x = 1,028,181.21 × 422,770.41
  4. Step 4: Simplify right side
    745,079.55x = 434,684,591,706.00
  5. Step 5: Solve for x
    x = 434,684,591,706.00/745,079.55
  6. Step 6: Final answer
    x = 583,406.96

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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.