Home / 1,186,102.20-1,778,807.70-427,855.80

Finding the Fourth Proportional to 1,186,102.20, 1,778,807.70 and 427,855.80

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Solution

The fourth proportional to 1,186,102.20, 1,778,807.70 and 427,855.80 is: 641,659.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,102.20 : 1,778,807.70 = 427,855.80 : x
  2. Step 2: Convert to fraction form
    1,186,102.20/1,778,807.70 = 427,855.80/x
  3. Step 3: Cross multiply
    1,186,102.20x = 1,778,807.70 × 427,855.80
  4. Step 4: Simplify right side
    1,186,102.20x = 761,073,191,529.66
  5. Step 5: Solve for x
    x = 761,073,191,529.66/1,186,102.20
  6. Step 6: Final answer
    x = 641,659.03

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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.