Home / 821,347.38-1,133,447.40-458,776.44

Finding the Fourth Proportional to 821,347.38, 1,133,447.40 and 458,776.44

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Solution

The fourth proportional to 821,347.38, 1,133,447.40 and 458,776.44 is: 633,104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,347.38 : 1,133,447.40 = 458,776.44 : x
  2. Step 2: Convert to fraction form
    821,347.38/1,133,447.40 = 458,776.44/x
  3. Step 3: Cross multiply
    821,347.38x = 1,133,447.40 × 458,776.44
  4. Step 4: Simplify right side
    821,347.38x = 519,998,963,099.26
  5. Step 5: Solve for x
    x = 519,998,963,099.26/821,347.38
  6. Step 6: Final answer
    x = 633,104.79

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Double scale
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1.5x scale

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.