Home / 819,201.27-1,229,348.45-286,722.32

Finding the Fourth Proportional to 819,201.27, 1,229,348.45 and 286,722.32

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Solution

The fourth proportional to 819,201.27, 1,229,348.45 and 286,722.32 is: 430,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,201.27 : 1,229,348.45 = 286,722.32 : x
  2. Step 2: Convert to fraction form
    819,201.27/1,229,348.45 = 286,722.32/x
  3. Step 3: Cross multiply
    819,201.27x = 1,229,348.45 × 286,722.32
  4. Step 4: Simplify right side
    819,201.27x = 352,481,639,672.40
  5. Step 5: Solve for x
    x = 352,481,639,672.40/819,201.27
  6. Step 6: Final answer
    x = 430,274.77

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1.5x scale

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.