Home / 819,890.49-1,229,442.06-464,809.17

Finding the Fourth Proportional to 819,890.49, 1,229,442.06 and 464,809.17

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Solution

The fourth proportional to 819,890.49, 1,229,442.06 and 464,809.17 is: 696,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,890.49 : 1,229,442.06 = 464,809.17 : x
  2. Step 2: Convert to fraction form
    819,890.49/1,229,442.06 = 464,809.17/x
  3. Step 3: Cross multiply
    819,890.49x = 1,229,442.06 × 464,809.17
  4. Step 4: Simplify right side
    819,890.49x = 571,455,943,471.69
  5. Step 5: Solve for x
    x = 571,455,943,471.69/819,890.49
  6. Step 6: Final answer
    x = 696,990.57

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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.