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Finding the Fourth Proportional to 619,913.20, 929,956.20 and 264,924.40

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Solution

The fourth proportional to 619,913.20, 929,956.20 and 264,924.40 is: 397,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,913.20 : 929,956.20 = 264,924.40 : x
  2. Step 2: Convert to fraction form
    619,913.20/929,956.20 = 264,924.40/x
  3. Step 3: Cross multiply
    619,913.20x = 929,956.20 × 264,924.40
  4. Step 4: Simplify right side
    619,913.20x = 246,368,088,311.28
  5. Step 5: Solve for x
    x = 246,368,088,311.28/619,913.20
  6. Step 6: Final answer
    x = 397,423.52

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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.