Home / 791,282.49-1,091,970.09-428,708.85

Finding the Fourth Proportional to 791,282.49, 1,091,970.09 and 428,708.85

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Solution

The fourth proportional to 791,282.49, 1,091,970.09 and 428,708.85 is: 591,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,282.49 : 1,091,970.09 = 428,708.85 : x
  2. Step 2: Convert to fraction form
    791,282.49/1,091,970.09 = 428,708.85/x
  3. Step 3: Cross multiply
    791,282.49x = 1,091,970.09 × 428,708.85
  4. Step 4: Simplify right side
    791,282.49x = 468,137,241,518.30
  5. Step 5: Solve for x
    x = 468,137,241,518.30/791,282.49
  6. Step 6: Final answer
    x = 591,618.35

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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.