Home / 1,396,386.80-2,094,580.20-1,331,432.90

Finding the Fourth Proportional to 1,396,386.80, 2,094,580.20 and 1,331,432.90

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Solution

The fourth proportional to 1,396,386.80, 2,094,580.20 and 1,331,432.90 is: 1,997,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,386.80 : 2,094,580.20 = 1,331,432.90 : x
  2. Step 2: Convert to fraction form
    1,396,386.80/2,094,580.20 = 1,331,432.90/x
  3. Step 3: Cross multiply
    1,396,386.80x = 2,094,580.20 × 1,331,432.90
  4. Step 4: Simplify right side
    1,396,386.80x = 2,788,792,989,968.58
  5. Step 5: Solve for x
    x = 2,788,792,989,968.58/1,396,386.80
  6. Step 6: Final answer
    x = 1,997,149.35

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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.