Home / 819,216.83-1,227,972.66-458,859.35

Finding the Fourth Proportional to 819,216.83, 1,227,972.66 and 458,859.35

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Solution

The fourth proportional to 819,216.83, 1,227,972.66 and 458,859.35 is: 687,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,216.83 : 1,227,972.66 = 458,859.35 : x
  2. Step 2: Convert to fraction form
    819,216.83/1,227,972.66 = 458,859.35/x
  3. Step 3: Cross multiply
    819,216.83x = 1,227,972.66 × 458,859.35
  4. Step 4: Simplify right side
    819,216.83x = 563,466,733,608.32
  5. Step 5: Solve for x
    x = 563,466,733,608.32/819,216.83
  6. Step 6: Final answer
    x = 687,811.47

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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.