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Finding the Fourth Proportional to 509,659.52, 764,484.96 and 130,579.52

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Solution

The fourth proportional to 509,659.52, 764,484.96 and 130,579.52 is: 195,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,659.52 : 764,484.96 = 130,579.52 : x
  2. Step 2: Convert to fraction form
    509,659.52/764,484.96 = 130,579.52/x
  3. Step 3: Cross multiply
    509,659.52x = 764,484.96 × 130,579.52
  4. Step 4: Simplify right side
    509,659.52x = 99,826,079,124.02
  5. Step 5: Solve for x
    x = 99,826,079,124.02/509,659.52
  6. Step 6: Final answer
    x = 195,868.17

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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.