Home / 782,331.21-1,079,579.73-480,466.89

Finding the Fourth Proportional to 782,331.21, 1,079,579.73 and 480,466.89

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Solution

The fourth proportional to 782,331.21, 1,079,579.73 and 480,466.89 is: 663,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,331.21 : 1,079,579.73 = 480,466.89 : x
  2. Step 2: Convert to fraction form
    782,331.21/1,079,579.73 = 480,466.89/x
  3. Step 3: Cross multiply
    782,331.21x = 1,079,579.73 × 480,466.89
  4. Step 4: Simplify right side
    782,331.21x = 518,702,315,380.14
  5. Step 5: Solve for x
    x = 518,702,315,380.14/782,331.21
  6. Step 6: Final answer
    x = 663,021.38

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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.