Home / 813,235.75-1,122,267.96-450,665.57

Finding the Fourth Proportional to 813,235.75, 1,122,267.96 and 450,665.57

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Solution

The fourth proportional to 813,235.75, 1,122,267.96 and 450,665.57 is: 621,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,235.75 : 1,122,267.96 = 450,665.57 : x
  2. Step 2: Convert to fraction form
    813,235.75/1,122,267.96 = 450,665.57/x
  3. Step 3: Cross multiply
    813,235.75x = 1,122,267.96 × 450,665.57
  4. Step 4: Simplify right side
    813,235.75x = 505,767,532,691.81
  5. Step 5: Solve for x
    x = 505,767,532,691.81/813,235.75
  6. Step 6: Final answer
    x = 621,919.95

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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.