Home / 826,434.56-1,240,316.04-427,192.32

Finding the Fourth Proportional to 826,434.56, 1,240,316.04 and 427,192.32

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Solution

The fourth proportional to 826,434.56, 1,240,316.04 and 427,192.32 is: 641,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,434.56 : 1,240,316.04 = 427,192.32 : x
  2. Step 2: Convert to fraction form
    826,434.56/1,240,316.04 = 427,192.32/x
  3. Step 3: Cross multiply
    826,434.56x = 1,240,316.04 × 427,192.32
  4. Step 4: Simplify right side
    826,434.56x = 529,853,486,660.81
  5. Step 5: Solve for x
    x = 529,853,486,660.81/826,434.56
  6. Step 6: Final answer
    x = 641,131.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.