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Finding the Fourth Proportional to 558,274.68, 770,416.92 and 303,630.12

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Solution

The fourth proportional to 558,274.68, 770,416.92 and 303,630.12 is: 419,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,274.68 : 770,416.92 = 303,630.12 : x
  2. Step 2: Convert to fraction form
    558,274.68/770,416.92 = 303,630.12/x
  3. Step 3: Cross multiply
    558,274.68x = 770,416.92 × 303,630.12
  4. Step 4: Simplify right side
    558,274.68x = 233,921,781,869.63
  5. Step 5: Solve for x
    x = 233,921,781,869.63/558,274.68
  6. Step 6: Final answer
    x = 419,008.40

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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.