Home / 1,383,276.36-1,909,075.86-810,800.76

Finding the Fourth Proportional to 1,383,276.36, 1,909,075.86 and 810,800.76

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Solution

The fourth proportional to 1,383,276.36, 1,909,075.86 and 810,800.76 is: 1,118,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,276.36 : 1,909,075.86 = 810,800.76 : x
  2. Step 2: Convert to fraction form
    1,383,276.36/1,909,075.86 = 810,800.76/x
  3. Step 3: Cross multiply
    1,383,276.36x = 1,909,075.86 × 810,800.76
  4. Step 4: Simplify right side
    1,383,276.36x = 1,547,880,158,185.65
  5. Step 5: Solve for x
    x = 1,547,880,158,185.65/1,383,276.36
  6. Step 6: Final answer
    x = 1,118,995.60

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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.