Home / 645,466.77-967,314.42-408,385.04

Finding the Fourth Proportional to 645,466.77, 967,314.42 and 408,385.04

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Solution

The fourth proportional to 645,466.77, 967,314.42 and 408,385.04 is: 612,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,466.77 : 967,314.42 = 408,385.04 : x
  2. Step 2: Convert to fraction form
    645,466.77/967,314.42 = 408,385.04/x
  3. Step 3: Cross multiply
    645,466.77x = 967,314.42 × 408,385.04
  4. Step 4: Simplify right side
    645,466.77x = 395,036,738,104.28
  5. Step 5: Solve for x
    x = 395,036,738,104.28/645,466.77
  6. Step 6: Final answer
    x = 612,017.16

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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.