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Finding the Fourth Proportional to 471,905.88, 707,268 and 371,670.28

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Solution

The fourth proportional to 471,905.88, 707,268 and 371,670.28 is: 557,040.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,905.88 : 707,268 = 371,670.28 : x
  2. Step 2: Convert to fraction form
    471,905.88/707,268 = 371,670.28/x
  3. Step 3: Cross multiply
    471,905.88x = 707,268 × 371,670.28
  4. Step 4: Simplify right side
    471,905.88x = 262,870,495,595.04
  5. Step 5: Solve for x
    x = 262,870,495,595.04/471,905.88
  6. Step 6: Final answer
    x = 557,040.09

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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.