Home / 809,002.40-1,116,415.92-446,429.60

Finding the Fourth Proportional to 809,002.40, 1,116,415.92 and 446,429.60

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Solution

The fourth proportional to 809,002.40, 1,116,415.92 and 446,429.60 is: 616,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,002.40 : 1,116,415.92 = 446,429.60 : x
  2. Step 2: Convert to fraction form
    809,002.40/1,116,415.92 = 446,429.60/x
  3. Step 3: Cross multiply
    809,002.40x = 1,116,415.92 × 446,429.60
  4. Step 4: Simplify right side
    809,002.40x = 498,401,112,599.23
  5. Step 5: Solve for x
    x = 498,401,112,599.23/809,002.40
  6. Step 6: Final answer
    x = 616,068.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.