Home / 683,708.40-1,026,218.70-347,129.10

Finding the Fourth Proportional to 683,708.40, 1,026,218.70 and 347,129.10

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Solution

The fourth proportional to 683,708.40, 1,026,218.70 and 347,129.10 is: 521,026.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,708.40 : 1,026,218.70 = 347,129.10 : x
  2. Step 2: Convert to fraction form
    683,708.40/1,026,218.70 = 347,129.10/x
  3. Step 3: Cross multiply
    683,708.40x = 1,026,218.70 × 347,129.10
  4. Step 4: Simplify right side
    683,708.40x = 356,230,373,734.17
  5. Step 5: Solve for x
    x = 356,230,373,734.17/683,708.40
  6. Step 6: Final answer
    x = 521,026.76

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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.