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Finding the Fourth Proportional to 501,551.65, 753,508.50 and 408,647.89

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Solution

The fourth proportional to 501,551.65, 753,508.50 and 408,647.89 is: 613,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,551.65 : 753,508.50 = 408,647.89 : x
  2. Step 2: Convert to fraction form
    501,551.65/753,508.50 = 408,647.89/x
  3. Step 3: Cross multiply
    501,551.65x = 753,508.50 × 408,647.89
  4. Step 4: Simplify right side
    501,551.65x = 307,919,658,622.07
  5. Step 5: Solve for x
    x = 307,919,658,622.07/501,551.65
  6. Step 6: Final answer
    x = 613,934.10

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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.