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Finding the Fourth Proportional to 697,959.82, 962,939.26 and 456,383.80

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Solution

The fourth proportional to 697,959.82, 962,939.26 and 456,383.80 is: 629,649.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,959.82 : 962,939.26 = 456,383.80 : x
  2. Step 2: Convert to fraction form
    697,959.82/962,939.26 = 456,383.80/x
  3. Step 3: Cross multiply
    697,959.82x = 962,939.26 × 456,383.80
  4. Step 4: Simplify right side
    697,959.82x = 439,469,878,647.99
  5. Step 5: Solve for x
    x = 439,469,878,647.99/697,959.82
  6. Step 6: Final answer
    x = 629,649.25

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Double scale
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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.