Home / 819,996.66-1,131,246.54-513,864.72

Finding the Fourth Proportional to 819,996.66, 1,131,246.54 and 513,864.72

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Solution

The fourth proportional to 819,996.66, 1,131,246.54 and 513,864.72 is: 708,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,996.66 : 1,131,246.54 = 513,864.72 : x
  2. Step 2: Convert to fraction form
    819,996.66/1,131,246.54 = 513,864.72/x
  3. Step 3: Cross multiply
    819,996.66x = 1,131,246.54 × 513,864.72
  4. Step 4: Simplify right side
    819,996.66x = 581,307,686,528.07
  5. Step 5: Solve for x
    x = 581,307,686,528.07/819,996.66
  6. Step 6: Final answer
    x = 708,914.70

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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.