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Finding the Fourth Proportional to 595,019.70, 820,921.97 and 380,285.46

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Solution

The fourth proportional to 595,019.70, 820,921.97 and 380,285.46 is: 524,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,019.70 : 820,921.97 = 380,285.46 : x
  2. Step 2: Convert to fraction form
    595,019.70/820,921.97 = 380,285.46/x
  3. Step 3: Cross multiply
    595,019.70x = 820,921.97 × 380,285.46
  4. Step 4: Simplify right side
    595,019.70x = 312,184,689,936.27
  5. Step 5: Solve for x
    x = 312,184,689,936.27/595,019.70
  6. Step 6: Final answer
    x = 524,662.78

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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.