Home / 819,148.78-1,229,276.76-286,674.58

Finding the Fourth Proportional to 819,148.78, 1,229,276.76 and 286,674.58

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Solution

The fourth proportional to 819,148.78, 1,229,276.76 and 286,674.58 is: 430,205.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,148.78 : 1,229,276.76 = 286,674.58 : x
  2. Step 2: Convert to fraction form
    819,148.78/1,229,276.76 = 286,674.58/x
  3. Step 3: Cross multiply
    819,148.78x = 1,229,276.76 × 286,674.58
  4. Step 4: Simplify right side
    819,148.78x = 352,402,398,876.76
  5. Step 5: Solve for x
    x = 352,402,398,876.76/819,148.78
  6. Step 6: Final answer
    x = 430,205.61

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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.