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Finding the Fourth Proportional to 635,609.06, 877,155.65 and 349,135.15

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Solution

The fourth proportional to 635,609.06, 877,155.65 and 349,135.15 is: 481,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,609.06 : 877,155.65 = 349,135.15 : x
  2. Step 2: Convert to fraction form
    635,609.06/877,155.65 = 349,135.15/x
  3. Step 3: Cross multiply
    635,609.06x = 877,155.65 × 349,135.15
  4. Step 4: Simplify right side
    635,609.06x = 306,245,869,436.10
  5. Step 5: Solve for x
    x = 306,245,869,436.10/635,609.06
  6. Step 6: Final answer
    x = 481,814.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.