Home / 813,520.63-1,220,288.24-214,566.94

Finding the Fourth Proportional to 813,520.63, 1,220,288.24 and 214,566.94

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Solution

The fourth proportional to 813,520.63, 1,220,288.24 and 214,566.94 is: 321,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,520.63 : 1,220,288.24 = 214,566.94 : x
  2. Step 2: Convert to fraction form
    813,520.63/1,220,288.24 = 214,566.94/x
  3. Step 3: Cross multiply
    813,520.63x = 1,220,288.24 × 214,566.94
  4. Step 4: Simplify right side
    813,520.63x = 261,833,513,574.79
  5. Step 5: Solve for x
    x = 261,833,513,574.79/813,520.63
  6. Step 6: Final answer
    x = 321,852.33

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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.