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Finding the Fourth Proportional to 404,526.80, 606,644.40 and 204,780.80

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Solution

The fourth proportional to 404,526.80, 606,644.40 and 204,780.80 is: 307,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,526.80 : 606,644.40 = 204,780.80 : x
  2. Step 2: Convert to fraction form
    404,526.80/606,644.40 = 204,780.80/x
  3. Step 3: Cross multiply
    404,526.80x = 606,644.40 × 204,780.80
  4. Step 4: Simplify right side
    404,526.80x = 124,229,125,547.52
  5. Step 5: Solve for x
    x = 124,229,125,547.52/404,526.80
  6. Step 6: Final answer
    x = 307,097.39

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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.