Home / 1,229,874.80-1,844,812.20-388,511.60

Finding the Fourth Proportional to 1,229,874.80, 1,844,812.20 and 388,511.60

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Solution

The fourth proportional to 1,229,874.80, 1,844,812.20 and 388,511.60 is: 582,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,874.80 : 1,844,812.20 = 388,511.60 : x
  2. Step 2: Convert to fraction form
    1,229,874.80/1,844,812.20 = 388,511.60/x
  3. Step 3: Cross multiply
    1,229,874.80x = 1,844,812.20 × 388,511.60
  4. Step 4: Simplify right side
    1,229,874.80x = 716,730,939,521.52
  5. Step 5: Solve for x
    x = 716,730,939,521.52/1,229,874.80
  6. Step 6: Final answer
    x = 582,767.40

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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.