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Finding the Fourth Proportional to 768,052.45, 1,146,238.58 and 682,928.13

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Solution

The fourth proportional to 768,052.45, 1,146,238.58 and 682,928.13 is: 1,019,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,052.45 : 1,146,238.58 = 682,928.13 : x
  2. Step 2: Convert to fraction form
    768,052.45/1,146,238.58 = 682,928.13/x
  3. Step 3: Cross multiply
    768,052.45x = 1,146,238.58 × 682,928.13
  4. Step 4: Simplify right side
    768,052.45x = 782,798,569,973.26
  5. Step 5: Solve for x
    x = 782,798,569,973.26/768,052.45
  6. Step 6: Final answer
    x = 1,019,199.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.