Home / 1,121,750.31-1,682,847.27-411,784.50

Finding the Fourth Proportional to 1,121,750.31, 1,682,847.27 and 411,784.50

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Solution

The fourth proportional to 1,121,750.31, 1,682,847.27 and 411,784.50 is: 617,758.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,750.31 : 1,682,847.27 = 411,784.50 : x
  2. Step 2: Convert to fraction form
    1,121,750.31/1,682,847.27 = 411,784.50/x
  3. Step 3: Cross multiply
    1,121,750.31x = 1,682,847.27 × 411,784.50
  4. Step 4: Simplify right side
    1,121,750.31x = 692,970,421,653.32
  5. Step 5: Solve for x
    x = 692,970,421,653.32/1,121,750.31
  6. Step 6: Final answer
    x = 617,758.17

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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.