Home / 769,021.60-1,150,810.80-670,266.40

Finding the Fourth Proportional to 769,021.60, 1,150,810.80 and 670,266.40

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Solution

The fourth proportional to 769,021.60, 1,150,810.80 and 670,266.40 is: 1,003,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,021.60 : 1,150,810.80 = 670,266.40 : x
  2. Step 2: Convert to fraction form
    769,021.60/1,150,810.80 = 670,266.40/x
  3. Step 3: Cross multiply
    769,021.60x = 1,150,810.80 × 670,266.40
  4. Step 4: Simplify right side
    769,021.60x = 771,349,811,997.12
  5. Step 5: Solve for x
    x = 771,349,811,997.12/769,021.60
  6. Step 6: Final answer
    x = 1,003,027.50

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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.