Home / 1,638,762.40-2,458,143.60-1,306,986.40

Finding the Fourth Proportional to 1,638,762.40, 2,458,143.60 and 1,306,986.40

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Solution

The fourth proportional to 1,638,762.40, 2,458,143.60 and 1,306,986.40 is: 1,960,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,762.40 : 2,458,143.60 = 1,306,986.40 : x
  2. Step 2: Convert to fraction form
    1,638,762.40/2,458,143.60 = 1,306,986.40/x
  3. Step 3: Cross multiply
    1,638,762.40x = 2,458,143.60 × 1,306,986.40
  4. Step 4: Simplify right side
    1,638,762.40x = 3,212,760,254,447.04
  5. Step 5: Solve for x
    x = 3,212,760,254,447.04/1,638,762.40
  6. Step 6: Final answer
    x = 1,960,479.60

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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.