Home / 724,722.44-1,000,120.10-402,431.54

Finding the Fourth Proportional to 724,722.44, 1,000,120.10 and 402,431.54

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Solution

The fourth proportional to 724,722.44, 1,000,120.10 and 402,431.54 is: 555,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,722.44 : 1,000,120.10 = 402,431.54 : x
  2. Step 2: Convert to fraction form
    724,722.44/1,000,120.10 = 402,431.54/x
  3. Step 3: Cross multiply
    724,722.44x = 1,000,120.10 × 402,431.54
  4. Step 4: Simplify right side
    724,722.44x = 402,479,865,015.20
  5. Step 5: Solve for x
    x = 402,479,865,015.20/724,722.44
  6. Step 6: Final answer
    x = 555,357.26

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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.