Home / 689,757.80-1,034,335.06-347,990.96

Finding the Fourth Proportional to 689,757.80, 1,034,335.06 and 347,990.96

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Solution

The fourth proportional to 689,757.80, 1,034,335.06 and 347,990.96 is: 521,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,757.80 : 1,034,335.06 = 347,990.96 : x
  2. Step 2: Convert to fraction form
    689,757.80/1,034,335.06 = 347,990.96/x
  3. Step 3: Cross multiply
    689,757.80x = 1,034,335.06 × 347,990.96
  4. Step 4: Simplify right side
    689,757.80x = 359,939,252,206.92
  5. Step 5: Solve for x
    x = 359,939,252,206.92/689,757.80
  6. Step 6: Final answer
    x = 521,834.27

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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.