Home / 811,848.28-1,216,372.26-538,126.36

Finding the Fourth Proportional to 811,848.28, 1,216,372.26 and 538,126.36

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Solution

The fourth proportional to 811,848.28, 1,216,372.26 and 538,126.36 is: 806,261.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,848.28 : 1,216,372.26 = 538,126.36 : x
  2. Step 2: Convert to fraction form
    811,848.28/1,216,372.26 = 538,126.36/x
  3. Step 3: Cross multiply
    811,848.28x = 1,216,372.26 × 538,126.36
  4. Step 4: Simplify right side
    811,848.28x = 654,561,976,678.77
  5. Step 5: Solve for x
    x = 654,561,976,678.77/811,848.28
  6. Step 6: Final answer
    x = 806,261.46

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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.