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Finding the Fourth Proportional to 404,455.70, 607,072.35 and 205,001.30

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Solution

The fourth proportional to 404,455.70, 607,072.35 and 205,001.30 is: 307,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,455.70 : 607,072.35 = 205,001.30 : x
  2. Step 2: Convert to fraction form
    404,455.70/607,072.35 = 205,001.30/x
  3. Step 3: Cross multiply
    404,455.70x = 607,072.35 × 205,001.30
  4. Step 4: Simplify right side
    404,455.70x = 124,450,620,944.06
  5. Step 5: Solve for x
    x = 124,450,620,944.06/404,455.70
  6. Step 6: Final answer
    x = 307,699.02

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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.