Home / 1,299,858.40-1,950,939.60-766,712.80

Finding the Fourth Proportional to 1,299,858.40, 1,950,939.60 and 766,712.80

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Solution

The fourth proportional to 1,299,858.40, 1,950,939.60 and 766,712.80 is: 1,150,748.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,858.40 : 1,950,939.60 = 766,712.80 : x
  2. Step 2: Convert to fraction form
    1,299,858.40/1,950,939.60 = 766,712.80/x
  3. Step 3: Cross multiply
    1,299,858.40x = 1,950,939.60 × 766,712.80
  4. Step 4: Simplify right side
    1,299,858.40x = 1,495,810,363,346.88
  5. Step 5: Solve for x
    x = 1,495,810,363,346.88/1,299,858.40
  6. Step 6: Final answer
    x = 1,150,748.70

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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.