Home / 813,623.61-1,220,200.12-273,820.40

Finding the Fourth Proportional to 813,623.61, 1,220,200.12 and 273,820.40

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Solution

The fourth proportional to 813,623.61, 1,220,200.12 and 273,820.40 is: 410,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,623.61 : 1,220,200.12 = 273,820.40 : x
  2. Step 2: Convert to fraction form
    813,623.61/1,220,200.12 = 273,820.40/x
  3. Step 3: Cross multiply
    813,623.61x = 1,220,200.12 × 273,820.40
  4. Step 4: Simplify right side
    813,623.61x = 334,115,684,525.59
  5. Step 5: Solve for x
    x = 334,115,684,525.59/813,623.61
  6. Step 6: Final answer
    x = 410,651.41

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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.