Home / 657,685.36-907,610.03-385,697.89

Finding the Fourth Proportional to 657,685.36, 907,610.03 and 385,697.89

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Solution

The fourth proportional to 657,685.36, 907,610.03 and 385,697.89 is: 532,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,685.36 : 907,610.03 = 385,697.89 : x
  2. Step 2: Convert to fraction form
    657,685.36/907,610.03 = 385,697.89/x
  3. Step 3: Cross multiply
    657,685.36x = 907,610.03 × 385,697.89
  4. Step 4: Simplify right side
    657,685.36x = 350,063,273,513.84
  5. Step 5: Solve for x
    x = 350,063,273,513.84/657,685.36
  6. Step 6: Final answer
    x = 532,265.57

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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.