Home / 1,215,331.78-1,677,175.47-671,480.10

Finding the Fourth Proportional to 1,215,331.78, 1,677,175.47 and 671,480.10

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Solution

The fourth proportional to 1,215,331.78, 1,677,175.47 and 671,480.10 is: 926,652.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,331.78 : 1,677,175.47 = 671,480.10 : x
  2. Step 2: Convert to fraction form
    1,215,331.78/1,677,175.47 = 671,480.10/x
  3. Step 3: Cross multiply
    1,215,331.78x = 1,677,175.47 × 671,480.10
  4. Step 4: Simplify right side
    1,215,331.78x = 1,126,189,952,313.15
  5. Step 5: Solve for x
    x = 1,126,189,952,313.15/1,215,331.78
  6. Step 6: Final answer
    x = 926,652.27

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Double scale
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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.