Home / 657,912.48-907,936.92-399,701.52

Finding the Fourth Proportional to 657,912.48, 907,936.92 and 399,701.52

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Solution

The fourth proportional to 657,912.48, 907,936.92 and 399,701.52 is: 551,598.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,912.48 : 907,936.92 = 399,701.52 : x
  2. Step 2: Convert to fraction form
    657,912.48/907,936.92 = 399,701.52/x
  3. Step 3: Cross multiply
    657,912.48x = 907,936.92 × 399,701.52
  4. Step 4: Simplify right side
    657,912.48x = 362,903,766,988.12
  5. Step 5: Solve for x
    x = 362,903,766,988.12/657,912.48
  6. Step 6: Final answer
    x = 551,598.85

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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.