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Finding the Fourth Proportional to 526,321.77, 789,532.67 and 147,242.58

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Solution

The fourth proportional to 526,321.77, 789,532.67 and 147,242.58 is: 220,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,321.77 : 789,532.67 = 147,242.58 : x
  2. Step 2: Convert to fraction form
    526,321.77/789,532.67 = 147,242.58/x
  3. Step 3: Cross multiply
    526,321.77x = 789,532.67 × 147,242.58
  4. Step 4: Simplify right side
    526,321.77x = 116,252,827,325.09
  5. Step 5: Solve for x
    x = 116,252,827,325.09/526,321.77
  6. Step 6: Final answer
    x = 220,877.86

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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.