Home / 1,919,887.81-2,879,997.09-499,946.47

Finding the Fourth Proportional to 1,919,887.81, 2,879,997.09 and 499,946.47

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Solution

The fourth proportional to 1,919,887.81, 2,879,997.09 and 499,946.47 is: 749,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,887.81 : 2,879,997.09 = 499,946.47 : x
  2. Step 2: Convert to fraction form
    1,919,887.81/2,879,997.09 = 499,946.47/x
  3. Step 3: Cross multiply
    1,919,887.81x = 2,879,997.09 × 499,946.47
  4. Step 4: Simplify right side
    1,919,887.81x = 1,439,844,378,755.77
  5. Step 5: Solve for x
    x = 1,439,844,378,755.77/1,919,887.81
  6. Step 6: Final answer
    x = 749,962.77

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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.