Home / 815,825.36-1,125,476.76-543,627.69

Finding the Fourth Proportional to 815,825.36, 1,125,476.76 and 543,627.69

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Solution

The fourth proportional to 815,825.36, 1,125,476.76 and 543,627.69 is: 749,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,825.36 : 1,125,476.76 = 543,627.69 : x
  2. Step 2: Convert to fraction form
    815,825.36/1,125,476.76 = 543,627.69/x
  3. Step 3: Cross multiply
    815,825.36x = 1,125,476.76 × 543,627.69
  4. Step 4: Simplify right side
    815,825.36x = 611,840,331,187.48
  5. Step 5: Solve for x
    x = 611,840,331,187.48/815,825.36
  6. Step 6: Final answer
    x = 749,964.84

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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.