Home / 828,003.69-1,242,005.55-267,038.19

Finding the Fourth Proportional to 828,003.69, 1,242,005.55 and 267,038.19

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Solution

The fourth proportional to 828,003.69, 1,242,005.55 and 267,038.19 is: 400,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,003.69 : 1,242,005.55 = 267,038.19 : x
  2. Step 2: Convert to fraction form
    828,003.69/1,242,005.55 = 267,038.19/x
  3. Step 3: Cross multiply
    828,003.69x = 1,242,005.55 × 267,038.19
  4. Step 4: Simplify right side
    828,003.69x = 331,662,914,041.96
  5. Step 5: Solve for x
    x = 331,662,914,041.96/828,003.69
  6. Step 6: Final answer
    x = 400,557.29

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.