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Finding the Fourth Proportional to 372,665.70, 558,998.55 and 347,004.90

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Solution

The fourth proportional to 372,665.70, 558,998.55 and 347,004.90 is: 520,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,665.70 : 558,998.55 = 347,004.90 : x
  2. Step 2: Convert to fraction form
    372,665.70/558,998.55 = 347,004.90/x
  3. Step 3: Cross multiply
    372,665.70x = 558,998.55 × 347,004.90
  4. Step 4: Simplify right side
    372,665.70x = 193,975,235,942.90
  5. Step 5: Solve for x
    x = 193,975,235,942.90/372,665.70
  6. Step 6: Final answer
    x = 520,507.35

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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.