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Finding the Fourth Proportional to 599,887.36, 900,055.68 and 311,519.28

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Solution

The fourth proportional to 599,887.36, 900,055.68 and 311,519.28 is: 467,395.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,887.36 : 900,055.68 = 311,519.28 : x
  2. Step 2: Convert to fraction form
    599,887.36/900,055.68 = 311,519.28/x
  3. Step 3: Cross multiply
    599,887.36x = 900,055.68 × 311,519.28
  4. Step 4: Simplify right side
    599,887.36x = 280,384,697,393.51
  5. Step 5: Solve for x
    x = 280,384,697,393.51/599,887.36
  6. Step 6: Final answer
    x = 467,395.57

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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.