Home / 657,042.63-985,670.55-257,466.79

Finding the Fourth Proportional to 657,042.63, 985,670.55 and 257,466.79

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Solution

The fourth proportional to 657,042.63, 985,670.55 and 257,466.79 is: 386,241.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,042.63 : 985,670.55 = 257,466.79 : x
  2. Step 2: Convert to fraction form
    657,042.63/985,670.55 = 257,466.79/x
  3. Step 3: Cross multiply
    657,042.63x = 985,670.55 × 257,466.79
  4. Step 4: Simplify right side
    657,042.63x = 253,777,432,506.04
  5. Step 5: Solve for x
    x = 253,777,432,506.04/657,042.63
  6. Step 6: Final answer
    x = 386,241.96

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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.