Home / 1,078,352.48-1,617,864.34-320,197.90

Finding the Fourth Proportional to 1,078,352.48, 1,617,864.34 and 320,197.90

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Solution

The fourth proportional to 1,078,352.48, 1,617,864.34 and 320,197.90 is: 480,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,352.48 : 1,617,864.34 = 320,197.90 : x
  2. Step 2: Convert to fraction form
    1,078,352.48/1,617,864.34 = 320,197.90/x
  3. Step 3: Cross multiply
    1,078,352.48x = 1,617,864.34 × 320,197.90
  4. Step 4: Simplify right side
    1,078,352.48x = 518,036,764,152.89
  5. Step 5: Solve for x
    x = 518,036,764,152.89/1,078,352.48
  6. Step 6: Final answer
    x = 480,396.51

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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.