Home / 1,225,849.50-1,838,782.44-427,146.30

Finding the Fourth Proportional to 1,225,849.50, 1,838,782.44 and 427,146.30

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Solution

The fourth proportional to 1,225,849.50, 1,838,782.44 and 427,146.30 is: 640,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,849.50 : 1,838,782.44 = 427,146.30 : x
  2. Step 2: Convert to fraction form
    1,225,849.50/1,838,782.44 = 427,146.30/x
  3. Step 3: Cross multiply
    1,225,849.50x = 1,838,782.44 × 427,146.30
  4. Step 4: Simplify right side
    1,225,849.50x = 785,429,115,750.97
  5. Step 5: Solve for x
    x = 785,429,115,750.97/1,225,849.50
  6. Step 6: Final answer
    x = 640,722.30

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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.