Home / 913,004.88-1,368,765.36-380,922.40

Finding the Fourth Proportional to 913,004.88, 1,368,765.36 and 380,922.40

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Solution

The fourth proportional to 913,004.88, 1,368,765.36 and 380,922.40 is: 571,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,004.88 : 1,368,765.36 = 380,922.40 : x
  2. Step 2: Convert to fraction form
    913,004.88/1,368,765.36 = 380,922.40/x
  3. Step 3: Cross multiply
    913,004.88x = 1,368,765.36 × 380,922.40
  4. Step 4: Simplify right side
    913,004.88x = 521,393,385,968.06
  5. Step 5: Solve for x
    x = 521,393,385,968.06/913,004.88
  6. Step 6: Final answer
    x = 571,074.04

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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.