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Finding the Fourth Proportional to 558,518.87, 770,763.93 and 303,870.26

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Solution

The fourth proportional to 558,518.87, 770,763.93 and 303,870.26 is: 419,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,518.87 : 770,763.93 = 303,870.26 : x
  2. Step 2: Convert to fraction form
    558,518.87/770,763.93 = 303,870.26/x
  3. Step 3: Cross multiply
    558,518.87x = 770,763.93 × 303,870.26
  4. Step 4: Simplify right side
    558,518.87x = 234,212,235,807.72
  5. Step 5: Solve for x
    x = 234,212,235,807.72/558,518.87
  6. Step 6: Final answer
    x = 419,345.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.