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Finding the Fourth Proportional to 661,939.01, 992,908.49 and 462,648.63

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Solution

The fourth proportional to 661,939.01, 992,908.49 and 462,648.63 is: 693,972.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,939.01 : 992,908.49 = 462,648.63 : x
  2. Step 2: Convert to fraction form
    661,939.01/992,908.49 = 462,648.63/x
  3. Step 3: Cross multiply
    661,939.01x = 992,908.49 × 462,648.63
  4. Step 4: Simplify right side
    661,939.01x = 459,367,750,300.63
  5. Step 5: Solve for x
    x = 459,367,750,300.63/661,939.01
  6. Step 6: Final answer
    x = 693,972.93

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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.