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Finding the Fourth Proportional to 522,756.28, 721,657.20 and 350,611.48

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Solution

The fourth proportional to 522,756.28, 721,657.20 and 350,611.48 is: 484,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,756.28 : 721,657.20 = 350,611.48 : x
  2. Step 2: Convert to fraction form
    522,756.28/721,657.20 = 350,611.48/x
  3. Step 3: Cross multiply
    522,756.28x = 721,657.20 × 350,611.48
  4. Step 4: Simplify right side
    522,756.28x = 253,021,298,944.66
  5. Step 5: Solve for x
    x = 253,021,298,944.66/522,756.28
  6. Step 6: Final answer
    x = 484,013.89

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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.