Home / 724,271,803.96-999,519,231.35-406,787,997.85

Finding the Fourth Proportional to 724,271,803.96, 999,519,231.35 and 406,787,997.85

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Solution

The fourth proportional to 724,271,803.96, 999,519,231.35 and 406,787,997.85 is: 561,380,996.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,271,803.96 : 999,519,231.35 = 406,787,997.85 : x
  2. Step 2: Convert to fraction form
    724,271,803.96/999,519,231.35 = 406,787,997.85/x
  3. Step 3: Cross multiply
    724,271,803.96x = 999,519,231.35 × 406,787,997.85
  4. Step 4: Simplify right side
    724,271,803.96x = 406,592,426,929,661,376
  5. Step 5: Solve for x
    x = 406,592,426,929,661,376/724,271,803.96
  6. Step 6: Final answer
    x = 561,380,996.34

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Double scale
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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.