Home / 1,679,280.40-2,518,920.60-682,723.60

Finding the Fourth Proportional to 1,679,280.40, 2,518,920.60 and 682,723.60

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Solution

The fourth proportional to 1,679,280.40, 2,518,920.60 and 682,723.60 is: 1,024,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,280.40 : 2,518,920.60 = 682,723.60 : x
  2. Step 2: Convert to fraction form
    1,679,280.40/2,518,920.60 = 682,723.60/x
  3. Step 3: Cross multiply
    1,679,280.40x = 2,518,920.60 × 682,723.60
  4. Step 4: Simplify right side
    1,679,280.40x = 1,719,726,540,146.16
  5. Step 5: Solve for x
    x = 1,719,726,540,146.16/1,679,280.40
  6. Step 6: Final answer
    x = 1,024,085.40

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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.