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Finding the Fourth Proportional to 571,418.71, 857,270.77 and 403,267.46

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Solution

The fourth proportional to 571,418.71, 857,270.77 and 403,267.46 is: 605,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,418.71 : 857,270.77 = 403,267.46 : x
  2. Step 2: Convert to fraction form
    571,418.71/857,270.77 = 403,267.46/x
  3. Step 3: Cross multiply
    571,418.71x = 857,270.77 × 403,267.46
  4. Step 4: Simplify right side
    571,418.71x = 345,709,400,655.62
  5. Step 5: Solve for x
    x = 345,709,400,655.62/571,418.71
  6. Step 6: Final answer
    x = 605,001.89

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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.