Home / 683,710.40-1,026,221.70-347,131.10

Finding the Fourth Proportional to 683,710.40, 1,026,221.70 and 347,131.10

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Solution

The fourth proportional to 683,710.40, 1,026,221.70 and 347,131.10 is: 521,029.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,710.40 : 1,026,221.70 = 347,131.10 : x
  2. Step 2: Convert to fraction form
    683,710.40/1,026,221.70 = 347,131.10/x
  3. Step 3: Cross multiply
    683,710.40x = 1,026,221.70 × 347,131.10
  4. Step 4: Simplify right side
    683,710.40x = 356,233,467,564.87
  5. Step 5: Solve for x
    x = 356,233,467,564.87/683,710.40
  6. Step 6: Final answer
    x = 521,029.76

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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.