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Finding the Fourth Proportional to 559,558.38, 839,545.40 and 388,690.06

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Solution

The fourth proportional to 559,558.38, 839,545.40 and 388,690.06 is: 583,179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,558.38 : 839,545.40 = 388,690.06 : x
  2. Step 2: Convert to fraction form
    559,558.38/839,545.40 = 388,690.06/x
  3. Step 3: Cross multiply
    559,558.38x = 839,545.40 × 388,690.06
  4. Step 4: Simplify right side
    559,558.38x = 326,322,951,898.72
  5. Step 5: Solve for x
    x = 326,322,951,898.72/559,558.38
  6. Step 6: Final answer
    x = 583,179.46

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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.