Home / 1,299,845.40-1,950,920.10-766,699.80

Finding the Fourth Proportional to 1,299,845.40, 1,950,920.10 and 766,699.80

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Solution

The fourth proportional to 1,299,845.40, 1,950,920.10 and 766,699.80 is: 1,150,729.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,845.40 : 1,950,920.10 = 766,699.80 : x
  2. Step 2: Convert to fraction form
    1,299,845.40/1,950,920.10 = 766,699.80/x
  3. Step 3: Cross multiply
    1,299,845.40x = 1,950,920.10 × 766,699.80
  4. Step 4: Simplify right side
    1,299,845.40x = 1,495,770,050,485.98
  5. Step 5: Solve for x
    x = 1,495,770,050,485.98/1,299,845.40
  6. Step 6: Final answer
    x = 1,150,729.19

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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.