Home / 1,870,920.30-2,808,020.70-1,111,812.60

Finding the Fourth Proportional to 1,870,920.30, 2,808,020.70 and 1,111,812.60

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Solution

The fourth proportional to 1,870,920.30, 2,808,020.70 and 1,111,812.60 is: 1,668,693.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,920.30 : 2,808,020.70 = 1,111,812.60 : x
  2. Step 2: Convert to fraction form
    1,870,920.30/2,808,020.70 = 1,111,812.60/x
  3. Step 3: Cross multiply
    1,870,920.30x = 2,808,020.70 × 1,111,812.60
  4. Step 4: Simplify right side
    1,870,920.30x = 3,121,992,795,320.82
  5. Step 5: Solve for x
    x = 3,121,992,795,320.82/1,870,920.30
  6. Step 6: Final answer
    x = 1,668,693.63

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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.