Home / 1,485,173.61-2,228,240.18-686,978.75

Finding the Fourth Proportional to 1,485,173.61, 2,228,240.18 and 686,978.75

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Solution

The fourth proportional to 1,485,173.61, 2,228,240.18 and 686,978.75 is: 1,030,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,173.61 : 2,228,240.18 = 686,978.75 : x
  2. Step 2: Convert to fraction form
    1,485,173.61/2,228,240.18 = 686,978.75/x
  3. Step 3: Cross multiply
    1,485,173.61x = 2,228,240.18 × 686,978.75
  4. Step 4: Simplify right side
    1,485,173.61x = 1,530,753,660,844.22
  5. Step 5: Solve for x
    x = 1,530,753,660,844.22/1,485,173.61
  6. Step 6: Final answer
    x = 1,030,690.05

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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.