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Finding the Fourth Proportional to 559,979.10, 839,968.65 and 550,647.90

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Solution

The fourth proportional to 559,979.10, 839,968.65 and 550,647.90 is: 825,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,979.10 : 839,968.65 = 550,647.90 : x
  2. Step 2: Convert to fraction form
    559,979.10/839,968.65 = 550,647.90/x
  3. Step 3: Cross multiply
    559,979.10x = 839,968.65 × 550,647.90
  4. Step 4: Simplify right side
    559,979.10x = 462,526,973,188.34
  5. Step 5: Solve for x
    x = 462,526,973,188.34/559,979.10
  6. Step 6: Final answer
    x = 825,971.85

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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.