Home / 995,138.34-1,372,205.64-672,287.87

Finding the Fourth Proportional to 995,138.34, 1,372,205.64 and 672,287.87

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Solution

The fourth proportional to 995,138.34, 1,372,205.64 and 672,287.87 is: 927,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,138.34 : 1,372,205.64 = 672,287.87 : x
  2. Step 2: Convert to fraction form
    995,138.34/1,372,205.64 = 672,287.87/x
  3. Step 3: Cross multiply
    995,138.34x = 1,372,205.64 × 672,287.87
  4. Step 4: Simplify right side
    995,138.34x = 922,517,200,056.56
  5. Step 5: Solve for x
    x = 922,517,200,056.56/995,138.34
  6. Step 6: Final answer
    x = 927,024.08

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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.