Home / 742,553.15-1,113,651.27-342,809.96

Finding the Fourth Proportional to 742,553.15, 1,113,651.27 and 342,809.96

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Solution

The fourth proportional to 742,553.15, 1,113,651.27 and 342,809.96 is: 514,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,553.15 : 1,113,651.27 = 342,809.96 : x
  2. Step 2: Convert to fraction form
    742,553.15/1,113,651.27 = 342,809.96/x
  3. Step 3: Cross multiply
    742,553.15x = 1,113,651.27 × 342,809.96
  4. Step 4: Simplify right side
    742,553.15x = 381,770,741,754.39
  5. Step 5: Solve for x
    x = 381,770,741,754.39/742,553.15
  6. Step 6: Final answer
    x = 514,132.55

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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.