Home / 1,221,911.80-1,833,523.80-512,011.60

Finding the Fourth Proportional to 1,221,911.80, 1,833,523.80 and 512,011.60

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Solution

The fourth proportional to 1,221,911.80, 1,833,523.80 and 512,011.60 is: 768,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,911.80 : 1,833,523.80 = 512,011.60 : x
  2. Step 2: Convert to fraction form
    1,221,911.80/1,833,523.80 = 512,011.60/x
  3. Step 3: Cross multiply
    1,221,911.80x = 1,833,523.80 × 512,011.60
  4. Step 4: Simplify right side
    1,221,911.80x = 938,785,454,476.08
  5. Step 5: Solve for x
    x = 938,785,454,476.08/1,221,911.80
  6. Step 6: Final answer
    x = 768,292.32

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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.