Home / 915,290.78-1,263,241.08-584,289.70

Finding the Fourth Proportional to 915,290.78, 1,263,241.08 and 584,289.70

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Solution

The fourth proportional to 915,290.78, 1,263,241.08 and 584,289.70 is: 806,409.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,290.78 : 1,263,241.08 = 584,289.70 : x
  2. Step 2: Convert to fraction form
    915,290.78/1,263,241.08 = 584,289.70/x
  3. Step 3: Cross multiply
    915,290.78x = 1,263,241.08 × 584,289.70
  4. Step 4: Simplify right side
    915,290.78x = 738,098,751,660.88
  5. Step 5: Solve for x
    x = 738,098,751,660.88/915,290.78
  6. Step 6: Final answer
    x = 806,409.03

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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.