Home / 1,191,228.16-1,787,105.76-392,477.44

Finding the Fourth Proportional to 1,191,228.16, 1,787,105.76 and 392,477.44

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Solution

The fourth proportional to 1,191,228.16, 1,787,105.76 and 392,477.44 is: 588,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,228.16 : 1,787,105.76 = 392,477.44 : x
  2. Step 2: Convert to fraction form
    1,191,228.16/1,787,105.76 = 392,477.44/x
  3. Step 3: Cross multiply
    1,191,228.16x = 1,787,105.76 × 392,477.44
  4. Step 4: Simplify right side
    1,191,228.16x = 701,398,693,694.06
  5. Step 5: Solve for x
    x = 701,398,693,694.06/1,191,228.16
  6. Step 6: Final answer
    x = 588,802.98

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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.