Home / 780,376.75-1,170,027.28-307,116.43

Finding the Fourth Proportional to 780,376.75, 1,170,027.28 and 307,116.43

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Solution

The fourth proportional to 780,376.75, 1,170,027.28 and 307,116.43 is: 460,462.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,376.75 : 1,170,027.28 = 307,116.43 : x
  2. Step 2: Convert to fraction form
    780,376.75/1,170,027.28 = 307,116.43/x
  3. Step 3: Cross multiply
    780,376.75x = 1,170,027.28 × 307,116.43
  4. Step 4: Simplify right side
    780,376.75x = 359,334,601,236.21
  5. Step 5: Solve for x
    x = 359,334,601,236.21/780,376.75
  6. Step 6: Final answer
    x = 460,462.98

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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.