Home / 819,103.24-1,229,208.45-286,628.95

Finding the Fourth Proportional to 819,103.24, 1,229,208.45 and 286,628.95

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Solution

The fourth proportional to 819,103.24, 1,229,208.45 and 286,628.95 is: 430,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,103.24 : 1,229,208.45 = 286,628.95 : x
  2. Step 2: Convert to fraction form
    819,103.24/1,229,208.45 = 286,628.95/x
  3. Step 3: Cross multiply
    819,103.24x = 1,229,208.45 × 286,628.95
  4. Step 4: Simplify right side
    819,103.24x = 352,326,727,354.63
  5. Step 5: Solve for x
    x = 352,326,727,354.63/819,103.24
  6. Step 6: Final answer
    x = 430,137.14

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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.