Home / 1,212,002.55-1,818,003.83-538,082.55

Finding the Fourth Proportional to 1,212,002.55, 1,818,003.83 and 538,082.55

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Solution

The fourth proportional to 1,212,002.55, 1,818,003.83 and 538,082.55 is: 807,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,002.55 : 1,818,003.83 = 538,082.55 : x
  2. Step 2: Convert to fraction form
    1,212,002.55/1,818,003.83 = 538,082.55/x
  3. Step 3: Cross multiply
    1,212,002.55x = 1,818,003.83 × 538,082.55
  4. Step 4: Simplify right side
    1,212,002.55x = 978,236,134,065.75
  5. Step 5: Solve for x
    x = 978,236,134,065.75/1,212,002.55
  6. Step 6: Final answer
    x = 807,123.83

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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.