Home / 1,520,212.29-2,280,376.77-678,771.33

Finding the Fourth Proportional to 1,520,212.29, 2,280,376.77 and 678,771.33

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Solution

The fourth proportional to 1,520,212.29, 2,280,376.77 and 678,771.33 is: 1,018,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,212.29 : 2,280,376.77 = 678,771.33 : x
  2. Step 2: Convert to fraction form
    1,520,212.29/2,280,376.77 = 678,771.33/x
  3. Step 3: Cross multiply
    1,520,212.29x = 2,280,376.77 × 678,771.33
  4. Step 4: Simplify right side
    1,520,212.29x = 1,547,854,373,074.00
  5. Step 5: Solve for x
    x = 1,547,854,373,074.00/1,520,212.29
  6. Step 6: Final answer
    x = 1,018,183.04

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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.