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Finding the Fourth Proportional to 451,377.72, 622,878.12 and 260,379.72

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Solution

The fourth proportional to 451,377.72, 622,878.12 and 260,379.72 is: 359,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,377.72 : 622,878.12 = 260,379.72 : x
  2. Step 2: Convert to fraction form
    451,377.72/622,878.12 = 260,379.72/x
  3. Step 3: Cross multiply
    451,377.72x = 622,878.12 × 260,379.72
  4. Step 4: Simplify right side
    451,377.72x = 162,184,830,479.73
  5. Step 5: Solve for x
    x = 162,184,830,479.73/451,377.72
  6. Step 6: Final answer
    x = 359,310.67

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1.5x scale

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.