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Finding the Fourth Proportional to 554,182.62, 764,417.43 and 384,354.78

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Solution

The fourth proportional to 554,182.62, 764,417.43 and 384,354.78 is: 530,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,182.62 : 764,417.43 = 384,354.78 : x
  2. Step 2: Convert to fraction form
    554,182.62/764,417.43 = 384,354.78/x
  3. Step 3: Cross multiply
    554,182.62x = 764,417.43 × 384,354.78
  4. Step 4: Simplify right side
    554,182.62x = 293,807,493,135.82
  5. Step 5: Solve for x
    x = 293,807,493,135.82/554,182.62
  6. Step 6: Final answer
    x = 530,163.67

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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.