Home / 670,721.72-1,006,090.68-266,013.32

Finding the Fourth Proportional to 670,721.72, 1,006,090.68 and 266,013.32

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Solution

The fourth proportional to 670,721.72, 1,006,090.68 and 266,013.32 is: 399,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,721.72 : 1,006,090.68 = 266,013.32 : x
  2. Step 2: Convert to fraction form
    670,721.72/1,006,090.68 = 266,013.32/x
  3. Step 3: Cross multiply
    670,721.72x = 1,006,090.68 × 266,013.32
  4. Step 4: Simplify right side
    670,721.72x = 267,633,522,007.86
  5. Step 5: Solve for x
    x = 267,633,522,007.86/670,721.72
  6. Step 6: Final answer
    x = 399,023.19

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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.