Home / 753,615.36-1,039,986.24-431,324.16

Finding the Fourth Proportional to 753,615.36, 1,039,986.24 and 431,324.16

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Solution

The fourth proportional to 753,615.36, 1,039,986.24 and 431,324.16 is: 595,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,615.36 : 1,039,986.24 = 431,324.16 : x
  2. Step 2: Convert to fraction form
    753,615.36/1,039,986.24 = 431,324.16/x
  3. Step 3: Cross multiply
    753,615.36x = 1,039,986.24 × 431,324.16
  4. Step 4: Simplify right side
    753,615.36x = 448,571,191,379.56
  5. Step 5: Solve for x
    x = 448,571,191,379.56/753,615.36
  6. Step 6: Final answer
    x = 595,225.65

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Double scale
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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.