Home / 1,212,180.85-1,818,280.36-538,080.92

Finding the Fourth Proportional to 1,212,180.85, 1,818,280.36 and 538,080.92

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Solution

The fourth proportional to 1,212,180.85, 1,818,280.36 and 538,080.92 is: 807,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,180.85 : 1,818,280.36 = 538,080.92 : x
  2. Step 2: Convert to fraction form
    1,212,180.85/1,818,280.36 = 538,080.92/x
  3. Step 3: Cross multiply
    1,212,180.85x = 1,818,280.36 × 538,080.92
  4. Step 4: Simplify right side
    1,212,180.85x = 978,381,974,527.60
  5. Step 5: Solve for x
    x = 978,381,974,527.60/1,212,180.85
  6. Step 6: Final answer
    x = 807,125.42

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1.5x scale

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.