Home / 1,889,233.20-2,834,724.60-991,688.40

Finding the Fourth Proportional to 1,889,233.20, 2,834,724.60 and 991,688.40

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Solution

The fourth proportional to 1,889,233.20, 2,834,724.60 and 991,688.40 is: 1,487,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,233.20 : 2,834,724.60 = 991,688.40 : x
  2. Step 2: Convert to fraction form
    1,889,233.20/2,834,724.60 = 991,688.40/x
  3. Step 3: Cross multiply
    1,889,233.20x = 2,834,724.60 × 991,688.40
  4. Step 4: Simplify right side
    1,889,233.20x = 2,811,163,503,014.64
  5. Step 5: Solve for x
    x = 2,811,163,503,014.64/1,889,233.20
  6. Step 6: Final answer
    x = 1,487,991.80

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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.