Home / 829,909.74-1,145,286.27-485,959.98

Finding the Fourth Proportional to 829,909.74, 1,145,286.27 and 485,959.98

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Solution

The fourth proportional to 829,909.74, 1,145,286.27 and 485,959.98 is: 670,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,909.74 : 1,145,286.27 = 485,959.98 : x
  2. Step 2: Convert to fraction form
    829,909.74/1,145,286.27 = 485,959.98/x
  3. Step 3: Cross multiply
    829,909.74x = 1,145,286.27 × 485,959.98
  4. Step 4: Simplify right side
    829,909.74x = 556,563,292,863.48
  5. Step 5: Solve for x
    x = 556,563,292,863.48/829,909.74
  6. Step 6: Final answer
    x = 670,631.11

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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.