Home / 880,920.96-1,321,408.77-419,200.30

Finding the Fourth Proportional to 880,920.96, 1,321,408.77 and 419,200.30

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Solution

The fourth proportional to 880,920.96, 1,321,408.77 and 419,200.30 is: 628,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,920.96 : 1,321,408.77 = 419,200.30 : x
  2. Step 2: Convert to fraction form
    880,920.96/1,321,408.77 = 419,200.30/x
  3. Step 3: Cross multiply
    880,920.96x = 1,321,408.77 × 419,200.30
  4. Step 4: Simplify right side
    880,920.96x = 553,934,952,806.63
  5. Step 5: Solve for x
    x = 553,934,952,806.63/880,920.96
  6. Step 6: Final answer
    x = 628,813.46

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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.