Home / 1,376,999.90-2,065,499.85-768,139.10

Finding the Fourth Proportional to 1,376,999.90, 2,065,499.85 and 768,139.10

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Solution

The fourth proportional to 1,376,999.90, 2,065,499.85 and 768,139.10 is: 1,152,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,999.90 : 2,065,499.85 = 768,139.10 : x
  2. Step 2: Convert to fraction form
    1,376,999.90/2,065,499.85 = 768,139.10/x
  3. Step 3: Cross multiply
    1,376,999.90x = 2,065,499.85 × 768,139.10
  4. Step 4: Simplify right side
    1,376,999.90x = 1,586,591,195,829.14
  5. Step 5: Solve for x
    x = 1,586,591,195,829.14/1,376,999.90
  6. Step 6: Final answer
    x = 1,152,208.65

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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.