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Finding the Fourth Proportional to 606.07, 909.65 and 469.99

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Solution

The fourth proportional to 606.07, 909.65 and 469.99 is: 705.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.07 : 909.65 = 469.99 : x
  2. Step 2: Convert to fraction form
    606.07/909.65 = 469.99/x
  3. Step 3: Cross multiply
    606.07x = 909.65 × 469.99
  4. Step 4: Simplify right side
    606.07x = 427,526.40
  5. Step 5: Solve for x
    x = 427,526.40/606.07
  6. Step 6: Final answer
    x = 705.41

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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.