Home / 948,136.58-1,420,840.72-408,244.65

Finding the Fourth Proportional to 948,136.58, 1,420,840.72 and 408,244.65

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Solution

The fourth proportional to 948,136.58, 1,420,840.72 and 408,244.65 is: 611,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,136.58 : 1,420,840.72 = 408,244.65 : x
  2. Step 2: Convert to fraction form
    948,136.58/1,420,840.72 = 408,244.65/x
  3. Step 3: Cross multiply
    948,136.58x = 1,420,840.72 × 408,244.65
  4. Step 4: Simplify right side
    948,136.58x = 580,050,622,442.15
  5. Step 5: Solve for x
    x = 580,050,622,442.15/948,136.58
  6. Step 6: Final answer
    x = 611,779.61

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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.