Home / 1,091,120.40-1,636,972.20-973,605.60

Finding the Fourth Proportional to 1,091,120.40, 1,636,972.20 and 973,605.60

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Solution

The fourth proportional to 1,091,120.40, 1,636,972.20 and 973,605.60 is: 1,460,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,120.40 : 1,636,972.20 = 973,605.60 : x
  2. Step 2: Convert to fraction form
    1,091,120.40/1,636,972.20 = 973,605.60/x
  3. Step 3: Cross multiply
    1,091,120.40x = 1,636,972.20 × 973,605.60
  4. Step 4: Simplify right side
    1,091,120.40x = 1,593,765,300,964.32
  5. Step 5: Solve for x
    x = 1,593,765,300,964.32/1,091,120.40
  6. Step 6: Final answer
    x = 1,460,668.59

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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.