Home / 928,861.20-1,391,218.20-717,814.80

Finding the Fourth Proportional to 928,861.20, 1,391,218.20 and 717,814.80

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Solution

The fourth proportional to 928,861.20, 1,391,218.20 and 717,814.80 is: 1,075,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,861.20 : 1,391,218.20 = 717,814.80 : x
  2. Step 2: Convert to fraction form
    928,861.20/1,391,218.20 = 717,814.80/x
  3. Step 3: Cross multiply
    928,861.20x = 1,391,218.20 × 717,814.80
  4. Step 4: Simplify right side
    928,861.20x = 998,637,013,989.36
  5. Step 5: Solve for x
    x = 998,637,013,989.36/928,861.20
  6. Step 6: Final answer
    x = 1,075,119.74

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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.