Home / 913,645.80-1,370,748.96-408,631.56

Finding the Fourth Proportional to 913,645.80, 1,370,748.96 and 408,631.56

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Solution

The fourth proportional to 913,645.80, 1,370,748.96 and 408,631.56 is: 613,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,645.80 : 1,370,748.96 = 408,631.56 : x
  2. Step 2: Convert to fraction form
    913,645.80/1,370,748.96 = 408,631.56/x
  3. Step 3: Cross multiply
    913,645.80x = 1,370,748.96 × 408,631.56
  4. Step 4: Simplify right side
    913,645.80x = 560,131,285,893.18
  5. Step 5: Solve for x
    x = 560,131,285,893.18/913,645.80
  6. Step 6: Final answer
    x = 613,072.69

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1.5x scale

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.