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Finding the Fourth Proportional to 1,650,768.90, 2,315,275.50 and 1,650,768.90

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Solution

The fourth proportional to 1,650,768.90, 2,315,275.50 and 1,650,768.90 is: 2,315,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650,768.90 : 2,315,275.50 = 1,650,768.90 : x
  2. Step 2: Convert to fraction form
    1,650,768.90/2,315,275.50 = 1,650,768.90/x
  3. Step 3: Cross multiply
    1,650,768.90x = 2,315,275.50 × 1,650,768.90
  4. Step 4: Simplify right side
    1,650,768.90x = 3,821,984,790,331.95
  5. Step 5: Solve for x
    x = 3,821,984,790,331.95/1,650,768.90
  6. Step 6: Final answer
    x = 2,315,275.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.