Home / 1,209,816.20-1,814,724.30-619,992.20

Finding the Fourth Proportional to 1,209,816.20, 1,814,724.30 and 619,992.20

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Solution

The fourth proportional to 1,209,816.20, 1,814,724.30 and 619,992.20 is: 929,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,816.20 : 1,814,724.30 = 619,992.20 : x
  2. Step 2: Convert to fraction form
    1,209,816.20/1,814,724.30 = 619,992.20/x
  3. Step 3: Cross multiply
    1,209,816.20x = 1,814,724.30 × 619,992.20
  4. Step 4: Simplify right side
    1,209,816.20x = 1,125,114,911,150.46
  5. Step 5: Solve for x
    x = 1,125,114,911,150.46/1,209,816.20
  6. Step 6: Final answer
    x = 929,988.30

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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.