Home / 721,725.77-995,870.62-415,742.39

Finding the Fourth Proportional to 721,725.77, 995,870.62 and 415,742.39

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Solution

The fourth proportional to 721,725.77, 995,870.62 and 415,742.39 is: 573,660.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,725.77 : 995,870.62 = 415,742.39 : x
  2. Step 2: Convert to fraction form
    721,725.77/995,870.62 = 415,742.39/x
  3. Step 3: Cross multiply
    721,725.77x = 995,870.62 × 415,742.39
  4. Step 4: Simplify right side
    721,725.77x = 414,025,624,631.52
  5. Step 5: Solve for x
    x = 414,025,624,631.52/721,725.77
  6. Step 6: Final answer
    x = 573,660.58

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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.