Home / 813,257.70-1,122,281.92-450,680.82

Finding the Fourth Proportional to 813,257.70, 1,122,281.92 and 450,680.82

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Solution

The fourth proportional to 813,257.70, 1,122,281.92 and 450,680.82 is: 621,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,257.70 : 1,122,281.92 = 450,680.82 : x
  2. Step 2: Convert to fraction form
    813,257.70/1,122,281.92 = 450,680.82/x
  3. Step 3: Cross multiply
    813,257.70x = 1,122,281.92 × 450,680.82
  4. Step 4: Simplify right side
    813,257.70x = 505,790,935,976.77
  5. Step 5: Solve for x
    x = 505,790,935,976.77/813,257.70
  6. Step 6: Final answer
    x = 621,931.94

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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.