Home / 1,639,967.51-2,262,180.86-1,276,816.16

Finding the Fourth Proportional to 1,639,967.51, 2,262,180.86 and 1,276,816.16

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Solution

The fourth proportional to 1,639,967.51, 2,262,180.86 and 1,276,816.16 is: 1,761,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,967.51 : 2,262,180.86 = 1,276,816.16 : x
  2. Step 2: Convert to fraction form
    1,639,967.51/2,262,180.86 = 1,276,816.16/x
  3. Step 3: Cross multiply
    1,639,967.51x = 2,262,180.86 × 1,276,816.16
  4. Step 4: Simplify right side
    1,639,967.51x = 2,888,389,082,950.13
  5. Step 5: Solve for x
    x = 2,888,389,082,950.13/1,639,967.51
  6. Step 6: Final answer
    x = 1,761,247.74

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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.