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Finding the Fourth Proportional to 509,646.53, 764,450.33 and 154,646.21

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Solution

The fourth proportional to 509,646.53, 764,450.33 and 154,646.21 is: 231,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,646.53 : 764,450.33 = 154,646.21 : x
  2. Step 2: Convert to fraction form
    509,646.53/764,450.33 = 154,646.21/x
  3. Step 3: Cross multiply
    509,646.53x = 764,450.33 × 154,646.21
  4. Step 4: Simplify right side
    509,646.53x = 118,219,341,672.27
  5. Step 5: Solve for x
    x = 118,219,341,672.27/509,646.53
  6. Step 6: Final answer
    x = 231,963.40

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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.