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Finding the Fourth Proportional to 606,605.80, 909,908.70 and 488,507.80

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Solution

The fourth proportional to 606,605.80, 909,908.70 and 488,507.80 is: 732,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,605.80 : 909,908.70 = 488,507.80 : x
  2. Step 2: Convert to fraction form
    606,605.80/909,908.70 = 488,507.80/x
  3. Step 3: Cross multiply
    606,605.80x = 909,908.70 × 488,507.80
  4. Step 4: Simplify right side
    606,605.80x = 444,497,497,237.86
  5. Step 5: Solve for x
    x = 444,497,497,237.86/606,605.80
  6. Step 6: Final answer
    x = 732,761.70

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Double scale
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Similar ratio
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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.