Home / 521,620.38-719,853.81-292,187.46

Finding the Fourth Proportional to 521,620.38, 719,853.81 and 292,187.46

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Solution

The fourth proportional to 521,620.38, 719,853.81 and 292,187.46 is: 403,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,620.38 : 719,853.81 = 292,187.46 : x
  2. Step 2: Convert to fraction form
    521,620.38/719,853.81 = 292,187.46/x
  3. Step 3: Cross multiply
    521,620.38x = 719,853.81 × 292,187.46
  4. Step 4: Simplify right side
    521,620.38x = 210,332,256,315.22
  5. Step 5: Solve for x
    x = 210,332,256,315.22/521,620.38
  6. Step 6: Final answer
    x = 403,228.60

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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.