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Finding the Fourth Proportional to 655,851.08, 981,554.60 and 403,291.54

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Solution

The fourth proportional to 655,851.08, 981,554.60 and 403,291.54 is: 603,570.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,851.08 : 981,554.60 = 403,291.54 : x
  2. Step 2: Convert to fraction form
    655,851.08/981,554.60 = 403,291.54/x
  3. Step 3: Cross multiply
    655,851.08x = 981,554.60 × 403,291.54
  4. Step 4: Simplify right side
    655,851.08x = 395,852,668,463.26
  5. Step 5: Solve for x
    x = 395,852,668,463.26/655,851.08
  6. Step 6: Final answer
    x = 603,570.96

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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.