Home / 1,679,378.40-2,518,143.12-1,147,500

Finding the Fourth Proportional to 1,679,378.40, 2,518,143.12 and 1,147,500

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Solution

The fourth proportional to 1,679,378.40, 2,518,143.12 and 1,147,500 is: 1,720,618.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,378.40 : 2,518,143.12 = 1,147,500 : x
  2. Step 2: Convert to fraction form
    1,679,378.40/2,518,143.12 = 1,147,500/x
  3. Step 3: Cross multiply
    1,679,378.40x = 2,518,143.12 × 1,147,500
  4. Step 4: Simplify right side
    1,679,378.40x = 2,889,569,230,200
  5. Step 5: Solve for x
    x = 2,889,569,230,200/1,679,378.40
  6. Step 6: Final answer
    x = 1,720,618.31

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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.