Home / 863,520.90-1,295,378.55-264,477.30

Finding the Fourth Proportional to 863,520.90, 1,295,378.55 and 264,477.30

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Solution

The fourth proportional to 863,520.90, 1,295,378.55 and 264,477.30 is: 396,745.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,520.90 : 1,295,378.55 = 264,477.30 : x
  2. Step 2: Convert to fraction form
    863,520.90/1,295,378.55 = 264,477.30/x
  3. Step 3: Cross multiply
    863,520.90x = 1,295,378.55 × 264,477.30
  4. Step 4: Simplify right side
    863,520.90x = 342,598,221,381.92
  5. Step 5: Solve for x
    x = 342,598,221,381.92/863,520.90
  6. Step 6: Final answer
    x = 396,745.72

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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.