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Finding the Fourth Proportional to 859,763.53, 1,287,667.93 and 499,041

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Solution

The fourth proportional to 859,763.53, 1,287,667.93 and 499,041 is: 747,413.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,763.53 : 1,287,667.93 = 499,041 : x
  2. Step 2: Convert to fraction form
    859,763.53/1,287,667.93 = 499,041/x
  3. Step 3: Cross multiply
    859,763.53x = 1,287,667.93 × 499,041
  4. Step 4: Simplify right side
    859,763.53x = 642,599,091,455.13
  5. Step 5: Solve for x
    x = 642,599,091,455.13/859,763.53
  6. Step 6: Final answer
    x = 747,413.76

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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.