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Finding the Fourth Proportional to 559,968.96, 839,421.12 and 356,995.20

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Solution

The fourth proportional to 559,968.96, 839,421.12 and 356,995.20 is: 535,153.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,968.96 : 839,421.12 = 356,995.20 : x
  2. Step 2: Convert to fraction form
    559,968.96/839,421.12 = 356,995.20/x
  3. Step 3: Cross multiply
    559,968.96x = 839,421.12 × 356,995.20
  4. Step 4: Simplify right side
    559,968.96x = 299,669,310,618.62
  5. Step 5: Solve for x
    x = 299,669,310,618.62/559,968.96
  6. Step 6: Final answer
    x = 535,153.43

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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.