Home / 1,213,679.80-1,820,519.70-859,094.20

Finding the Fourth Proportional to 1,213,679.80, 1,820,519.70 and 859,094.20

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Solution

The fourth proportional to 1,213,679.80, 1,820,519.70 and 859,094.20 is: 1,288,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,679.80 : 1,820,519.70 = 859,094.20 : x
  2. Step 2: Convert to fraction form
    1,213,679.80/1,820,519.70 = 859,094.20/x
  3. Step 3: Cross multiply
    1,213,679.80x = 1,820,519.70 × 859,094.20
  4. Step 4: Simplify right side
    1,213,679.80x = 1,563,997,915,255.74
  5. Step 5: Solve for x
    x = 1,563,997,915,255.74/1,213,679.80
  6. Step 6: Final answer
    x = 1,288,641.30

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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.