Home / 862,497-1,190,257.38-499,946.76

Finding the Fourth Proportional to 862,497, 1,190,257.38 and 499,946.76

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Solution

The fourth proportional to 862,497, 1,190,257.38 and 499,946.76 is: 689,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,497 : 1,190,257.38 = 499,946.76 : x
  2. Step 2: Convert to fraction form
    862,497/1,190,257.38 = 499,946.76/x
  3. Step 3: Cross multiply
    862,497x = 1,190,257.38 × 499,946.76
  4. Step 4: Simplify right side
    862,497x = 595,065,320,697.09
  5. Step 5: Solve for x
    x = 595,065,320,697.09/862,497
  6. Step 6: Final answer
    x = 689,933.21

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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.