Home / 3,118,505.85-4,677,758.78-1,438,889.85

Finding the Fourth Proportional to 3,118,505.85, 4,677,758.78 and 1,438,889.85

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Solution

The fourth proportional to 3,118,505.85, 4,677,758.78 and 1,438,889.85 is: 2,158,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,505.85 : 4,677,758.78 = 1,438,889.85 : x
  2. Step 2: Convert to fraction form
    3,118,505.85/4,677,758.78 = 1,438,889.85/x
  3. Step 3: Cross multiply
    3,118,505.85x = 4,677,758.78 × 1,438,889.85
  4. Step 4: Simplify right side
    3,118,505.85x = 6,730,779,622,095.94
  5. Step 5: Solve for x
    x = 6,730,779,622,095.94/3,118,505.85
  6. Step 6: Final answer
    x = 2,158,334.78

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Similar ratio
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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.