Home / 671,675.64-1,007,584.08-387,359.72

Finding the Fourth Proportional to 671,675.64, 1,007,584.08 and 387,359.72

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Solution

The fourth proportional to 671,675.64, 1,007,584.08 and 387,359.72 is: 581,080.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,675.64 : 1,007,584.08 = 387,359.72 : x
  2. Step 2: Convert to fraction form
    671,675.64/1,007,584.08 = 387,359.72/x
  3. Step 3: Cross multiply
    671,675.64x = 1,007,584.08 × 387,359.72
  4. Step 4: Simplify right side
    671,675.64x = 390,297,487,105.26
  5. Step 5: Solve for x
    x = 390,297,487,105.26/671,675.64
  6. Step 6: Final answer
    x = 581,080.31

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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.