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Finding the Fourth Proportional to 666,840.60, 999,527.04 and 329,381.64

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Solution

The fourth proportional to 666,840.60, 999,527.04 and 329,381.64 is: 493,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,840.60 : 999,527.04 = 329,381.64 : x
  2. Step 2: Convert to fraction form
    666,840.60/999,527.04 = 329,381.64/x
  3. Step 3: Cross multiply
    666,840.60x = 999,527.04 × 329,381.64
  4. Step 4: Simplify right side
    666,840.60x = 329,225,855,659.55
  5. Step 5: Solve for x
    x = 329,225,855,659.55/666,840.60
  6. Step 6: Final answer
    x = 493,709.97

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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.