Home / 1,386,522.26-2,079,755.70-628,222.40

Finding the Fourth Proportional to 1,386,522.26, 2,079,755.70 and 628,222.40

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Solution

The fourth proportional to 1,386,522.26, 2,079,755.70 and 628,222.40 is: 942,321.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,522.26 : 2,079,755.70 = 628,222.40 : x
  2. Step 2: Convert to fraction form
    1,386,522.26/2,079,755.70 = 628,222.40/x
  3. Step 3: Cross multiply
    1,386,522.26x = 2,079,755.70 × 628,222.40
  4. Step 4: Simplify right side
    1,386,522.26x = 1,306,549,117,267.68
  5. Step 5: Solve for x
    x = 1,306,549,117,267.68/1,386,522.26
  6. Step 6: Final answer
    x = 942,321.05

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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.