Home / 643,735.77-888,296.67-382,045.95

Finding the Fourth Proportional to 643,735.77, 888,296.67 and 382,045.95

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Solution

The fourth proportional to 643,735.77, 888,296.67 and 382,045.95 is: 527,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,735.77 : 888,296.67 = 382,045.95 : x
  2. Step 2: Convert to fraction form
    643,735.77/888,296.67 = 382,045.95/x
  3. Step 3: Cross multiply
    643,735.77x = 888,296.67 × 382,045.95
  4. Step 4: Simplify right side
    643,735.77x = 339,370,145,171.99
  5. Step 5: Solve for x
    x = 339,370,145,171.99/643,735.77
  6. Step 6: Final answer
    x = 527,188.58

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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.