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Finding the Fourth Proportional to 606,645.90, 909,640.80 and 251,695.80

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Solution

The fourth proportional to 606,645.90, 909,640.80 and 251,695.80 is: 377,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,645.90 : 909,640.80 = 251,695.80 : x
  2. Step 2: Convert to fraction form
    606,645.90/909,640.80 = 251,695.80/x
  3. Step 3: Cross multiply
    606,645.90x = 909,640.80 × 251,695.80
  4. Step 4: Simplify right side
    606,645.90x = 228,952,768,868.64
  5. Step 5: Solve for x
    x = 228,952,768,868.64/606,645.90
  6. Step 6: Final answer
    x = 377,407.59

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1.5x scale

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.