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Finding the Fourth Proportional to 478,229.52, 660,274.38 and 297,211.56

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Solution

The fourth proportional to 478,229.52, 660,274.38 and 297,211.56 is: 410,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,229.52 : 660,274.38 = 297,211.56 : x
  2. Step 2: Convert to fraction form
    478,229.52/660,274.38 = 297,211.56/x
  3. Step 3: Cross multiply
    478,229.52x = 660,274.38 × 297,211.56
  4. Step 4: Simplify right side
    478,229.52x = 196,241,178,507.83
  5. Step 5: Solve for x
    x = 196,241,178,507.83/478,229.52
  6. Step 6: Final answer
    x = 410,349.36

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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.