Home / 1,121,274.92-1,682,133.93-411,309.11

Finding the Fourth Proportional to 1,121,274.92, 1,682,133.93 and 411,309.11

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Solution

The fourth proportional to 1,121,274.92, 1,682,133.93 and 411,309.11 is: 617,044.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,274.92 : 1,682,133.93 = 411,309.11 : x
  2. Step 2: Convert to fraction form
    1,121,274.92/1,682,133.93 = 411,309.11/x
  3. Step 3: Cross multiply
    1,121,274.92x = 1,682,133.93 × 411,309.11
  4. Step 4: Simplify right side
    1,121,274.92x = 691,877,009,649.10
  5. Step 5: Solve for x
    x = 691,877,009,649.10/1,121,274.92
  6. Step 6: Final answer
    x = 617,044.93

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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.