Home / 813,215.82-1,122,244.46-450,645.72

Finding the Fourth Proportional to 813,215.82, 1,122,244.46 and 450,645.72

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Solution

The fourth proportional to 813,215.82, 1,122,244.46 and 450,645.72 is: 621,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,215.82 : 1,122,244.46 = 450,645.72 : x
  2. Step 2: Convert to fraction form
    813,215.82/1,122,244.46 = 450,645.72/x
  3. Step 3: Cross multiply
    813,215.82x = 1,122,244.46 × 450,645.72
  4. Step 4: Simplify right side
    813,215.82x = 505,734,662,692.71
  5. Step 5: Solve for x
    x = 505,734,662,692.71/813,215.82
  6. Step 6: Final answer
    x = 621,894.77

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Double scale
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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.