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Finding the Fourth Proportional to 635,591.40, 877,122.45 and 345,208.62

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Solution

The fourth proportional to 635,591.40, 877,122.45 and 345,208.62 is: 476,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,591.40 : 877,122.45 = 345,208.62 : x
  2. Step 2: Convert to fraction form
    635,591.40/877,122.45 = 345,208.62/x
  3. Step 3: Cross multiply
    635,591.40x = 877,122.45 × 345,208.62
  4. Step 4: Simplify right side
    635,591.40x = 302,790,230,535.52
  5. Step 5: Solve for x
    x = 302,790,230,535.52/635,591.40
  6. Step 6: Final answer
    x = 476,391.33

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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.