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Finding the Fourth Proportional to 404,668.72, 606,530.40 and 304,507

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Solution

The fourth proportional to 404,668.72, 606,530.40 and 304,507 is: 456,404.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,668.72 : 606,530.40 = 304,507 : x
  2. Step 2: Convert to fraction form
    404,668.72/606,530.40 = 304,507/x
  3. Step 3: Cross multiply
    404,668.72x = 606,530.40 × 304,507
  4. Step 4: Simplify right side
    404,668.72x = 184,692,752,512.80
  5. Step 5: Solve for x
    x = 184,692,752,512.80/404,668.72
  6. Step 6: Final answer
    x = 456,404.82

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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.