Home / 745,334.07-1,029,200.31-721,232.39

Finding the Fourth Proportional to 745,334.07, 1,029,200.31 and 721,232.39

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Solution

The fourth proportional to 745,334.07, 1,029,200.31 and 721,232.39 is: 995,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,334.07 : 1,029,200.31 = 721,232.39 : x
  2. Step 2: Convert to fraction form
    745,334.07/1,029,200.31 = 721,232.39/x
  3. Step 3: Cross multiply
    745,334.07x = 1,029,200.31 × 721,232.39
  4. Step 4: Simplify right side
    745,334.07x = 742,292,603,538.43
  5. Step 5: Solve for x
    x = 742,292,603,538.43/745,334.07
  6. Step 6: Final answer
    x = 995,919.33

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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.