Home / 915,923.32-1,263,146.78-571,791.02

Finding the Fourth Proportional to 915,923.32, 1,263,146.78 and 571,791.02

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Solution

The fourth proportional to 915,923.32, 1,263,146.78 and 571,791.02 is: 788,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,923.32 : 1,263,146.78 = 571,791.02 : x
  2. Step 2: Convert to fraction form
    915,923.32/1,263,146.78 = 571,791.02/x
  3. Step 3: Cross multiply
    915,923.32x = 1,263,146.78 × 571,791.02
  4. Step 4: Simplify right side
    915,923.32x = 722,255,985,745.92
  5. Step 5: Solve for x
    x = 722,255,985,745.92/915,923.32
  6. Step 6: Final answer
    x = 788,555.08

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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.