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Finding the Fourth Proportional to 515,887.36, 773,582.72 and 403,282.24

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Solution

The fourth proportional to 515,887.36, 773,582.72 and 403,282.24 is: 604,729.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,887.36 : 773,582.72 = 403,282.24 : x
  2. Step 2: Convert to fraction form
    515,887.36/773,582.72 = 403,282.24/x
  3. Step 3: Cross multiply
    515,887.36x = 773,582.72 × 403,282.24
  4. Step 4: Simplify right side
    515,887.36x = 311,972,172,146.89
  5. Step 5: Solve for x
    x = 311,972,172,146.89/515,887.36
  6. Step 6: Final answer
    x = 604,729.24

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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.