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Finding the Fourth Proportional to 559,780.30, 839,779.80 and 222,763.60

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Solution

The fourth proportional to 559,780.30, 839,779.80 and 222,763.60 is: 334,188.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,780.30 : 839,779.80 = 222,763.60 : x
  2. Step 2: Convert to fraction form
    559,780.30/839,779.80 = 222,763.60/x
  3. Step 3: Cross multiply
    559,780.30x = 839,779.80 × 222,763.60
  4. Step 4: Simplify right side
    559,780.30x = 187,072,371,455.28
  5. Step 5: Solve for x
    x = 187,072,371,455.28/559,780.30
  6. Step 6: Final answer
    x = 334,188.92

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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.