Home / 811,966.48-1,120,516.14-449,415.52

Finding the Fourth Proportional to 811,966.48, 1,120,516.14 and 449,415.52

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Solution

The fourth proportional to 811,966.48, 1,120,516.14 and 449,415.52 is: 620,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,966.48 : 1,120,516.14 = 449,415.52 : x
  2. Step 2: Convert to fraction form
    811,966.48/1,120,516.14 = 449,415.52/x
  3. Step 3: Cross multiply
    811,966.48x = 1,120,516.14 × 449,415.52
  4. Step 4: Simplify right side
    811,966.48x = 503,577,343,726.49
  5. Step 5: Solve for x
    x = 503,577,343,726.49/811,966.48
  6. Step 6: Final answer
    x = 620,194.74

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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.