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Finding the Fourth Proportional to 657,895.92, 907,896.60 and 371,434.46

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Solution

The fourth proportional to 657,895.92, 907,896.60 and 371,434.46 is: 512,579.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,895.92 : 907,896.60 = 371,434.46 : x
  2. Step 2: Convert to fraction form
    657,895.92/907,896.60 = 371,434.46/x
  3. Step 3: Cross multiply
    657,895.92x = 907,896.60 × 371,434.46
  4. Step 4: Simplify right side
    657,895.92x = 337,224,083,924.27
  5. Step 5: Solve for x
    x = 337,224,083,924.27/657,895.92
  6. Step 6: Final answer
    x = 512,579.68

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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.