Home / 1,284,005.20-1,926,007.80-620,453.20

Finding the Fourth Proportional to 1,284,005.20, 1,926,007.80 and 620,453.20

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Solution

The fourth proportional to 1,284,005.20, 1,926,007.80 and 620,453.20 is: 930,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,005.20 : 1,926,007.80 = 620,453.20 : x
  2. Step 2: Convert to fraction form
    1,284,005.20/1,926,007.80 = 620,453.20/x
  3. Step 3: Cross multiply
    1,284,005.20x = 1,926,007.80 × 620,453.20
  4. Step 4: Simplify right side
    1,284,005.20x = 1,194,997,702,734.96
  5. Step 5: Solve for x
    x = 1,194,997,702,734.96/1,284,005.20
  6. Step 6: Final answer
    x = 930,679.80

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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.