Home / 1,215,906.87-1,823,582.68-457,828.28

Finding the Fourth Proportional to 1,215,906.87, 1,823,582.68 and 457,828.28

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Solution

The fourth proportional to 1,215,906.87, 1,823,582.68 and 457,828.28 is: 686,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,906.87 : 1,823,582.68 = 457,828.28 : x
  2. Step 2: Convert to fraction form
    1,215,906.87/1,823,582.68 = 457,828.28/x
  3. Step 3: Cross multiply
    1,215,906.87x = 1,823,582.68 × 457,828.28
  4. Step 4: Simplify right side
    1,215,906.87x = 834,887,711,559.71
  5. Step 5: Solve for x
    x = 834,887,711,559.71/1,215,906.87
  6. Step 6: Final answer
    x = 686,637.88

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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.