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Finding the Fourth Proportional to 559,968.70, 839,953.05 and 371,011.90

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Solution

The fourth proportional to 559,968.70, 839,953.05 and 371,011.90 is: 556,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,968.70 : 839,953.05 = 371,011.90 : x
  2. Step 2: Convert to fraction form
    559,968.70/839,953.05 = 371,011.90/x
  3. Step 3: Cross multiply
    559,968.70x = 839,953.05 × 371,011.90
  4. Step 4: Simplify right side
    559,968.70x = 311,632,576,991.30
  5. Step 5: Solve for x
    x = 311,632,576,991.30/559,968.70
  6. Step 6: Final answer
    x = 556,517.85

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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.