Home / 1,679,378.90-2,518,143.87-1,147,500.50

Finding the Fourth Proportional to 1,679,378.90, 2,518,143.87 and 1,147,500.50

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Solution

The fourth proportional to 1,679,378.90, 2,518,143.87 and 1,147,500.50 is: 1,720,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,378.90 : 2,518,143.87 = 1,147,500.50 : x
  2. Step 2: Convert to fraction form
    1,679,378.90/2,518,143.87 = 1,147,500.50/x
  3. Step 3: Cross multiply
    1,679,378.90x = 2,518,143.87 × 1,147,500.50
  4. Step 4: Simplify right side
    1,679,378.90x = 2,889,571,349,896.94
  5. Step 5: Solve for x
    x = 2,889,571,349,896.94/1,679,378.90
  6. Step 6: Final answer
    x = 1,720,619.06

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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.