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Finding the Fourth Proportional to 610,234.80, 915,611.40 and 294,529.20

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Solution

The fourth proportional to 610,234.80, 915,611.40 and 294,529.20 is: 441,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,234.80 : 915,611.40 = 294,529.20 : x
  2. Step 2: Convert to fraction form
    610,234.80/915,611.40 = 294,529.20/x
  3. Step 3: Cross multiply
    610,234.80x = 915,611.40 × 294,529.20
  4. Step 4: Simplify right side
    610,234.80x = 269,674,293,152.88
  5. Step 5: Solve for x
    x = 269,674,293,152.88/610,234.80
  6. Step 6: Final answer
    x = 441,918.90

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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.