Home / 657,814.57-907,784.21-356,008.57

Finding the Fourth Proportional to 657,814.57, 907,784.21 and 356,008.57

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Solution

The fourth proportional to 657,814.57, 907,784.21 and 356,008.57 is: 491,291.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,814.57 : 907,784.21 = 356,008.57 : x
  2. Step 2: Convert to fraction form
    657,814.57/907,784.21 = 356,008.57/x
  3. Step 3: Cross multiply
    657,814.57x = 907,784.21 × 356,008.57
  4. Step 4: Simplify right side
    657,814.57x = 323,178,957,091.24
  5. Step 5: Solve for x
    x = 323,178,957,091.24/657,814.57
  6. Step 6: Final answer
    x = 491,291.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.