Home / 750,535.36-1,035,837.12-428,171.20

Finding the Fourth Proportional to 750,535.36, 1,035,837.12 and 428,171.20

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Solution

The fourth proportional to 750,535.36, 1,035,837.12 and 428,171.20 is: 590,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,535.36 : 1,035,837.12 = 428,171.20 : x
  2. Step 2: Convert to fraction form
    750,535.36/1,035,837.12 = 428,171.20/x
  3. Step 3: Cross multiply
    750,535.36x = 1,035,837.12 × 428,171.20
  4. Step 4: Simplify right side
    750,535.36x = 443,515,622,674.94
  5. Step 5: Solve for x
    x = 443,515,622,674.94/750,535.36
  6. Step 6: Final answer
    x = 590,932.35

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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.