Home / 1,113,203.20-1,668,435.20-513,331.20

Finding the Fourth Proportional to 1,113,203.20, 1,668,435.20 and 513,331.20

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Solution

The fourth proportional to 1,113,203.20, 1,668,435.20 and 513,331.20 is: 769,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,203.20 : 1,668,435.20 = 513,331.20 : x
  2. Step 2: Convert to fraction form
    1,113,203.20/1,668,435.20 = 513,331.20/x
  3. Step 3: Cross multiply
    1,113,203.20x = 1,668,435.20 × 513,331.20
  4. Step 4: Simplify right side
    1,113,203.20x = 856,459,843,338.24
  5. Step 5: Solve for x
    x = 856,459,843,338.24/1,113,203.20
  6. Step 6: Final answer
    x = 769,365.24

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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.