Home / 753,685.52-1,040,132.53-431,388.24

Finding the Fourth Proportional to 753,685.52, 1,040,132.53 and 431,388.24

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Solution

The fourth proportional to 753,685.52, 1,040,132.53 and 431,388.24 is: 595,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,685.52 : 1,040,132.53 = 431,388.24 : x
  2. Step 2: Convert to fraction form
    753,685.52/1,040,132.53 = 431,388.24/x
  3. Step 3: Cross multiply
    753,685.52x = 1,040,132.53 × 431,388.24
  4. Step 4: Simplify right side
    753,685.52x = 448,700,939,326.51
  5. Step 5: Solve for x
    x = 448,700,939,326.51/753,685.52
  6. Step 6: Final answer
    x = 595,342.39

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Double scale
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Similar ratio
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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.