Home / 667,271.75-1,000,431.95-312,092.01

Finding the Fourth Proportional to 667,271.75, 1,000,431.95 and 312,092.01

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Solution

The fourth proportional to 667,271.75, 1,000,431.95 and 312,092.01 is: 467,915.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,271.75 : 1,000,431.95 = 312,092.01 : x
  2. Step 2: Convert to fraction form
    667,271.75/1,000,431.95 = 312,092.01/x
  3. Step 3: Cross multiply
    667,271.75x = 1,000,431.95 × 312,092.01
  4. Step 4: Simplify right side
    667,271.75x = 312,226,816,583.26
  5. Step 5: Solve for x
    x = 312,226,816,583.26/667,271.75
  6. Step 6: Final answer
    x = 467,915.54

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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.