Home / 1,295,106.84-1,788,375.42-812,501.64

Finding the Fourth Proportional to 1,295,106.84, 1,788,375.42 and 812,501.64

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Solution

The fourth proportional to 1,295,106.84, 1,788,375.42 and 812,501.64 is: 1,121,959.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,106.84 : 1,788,375.42 = 812,501.64 : x
  2. Step 2: Convert to fraction form
    1,295,106.84/1,788,375.42 = 812,501.64/x
  3. Step 3: Cross multiply
    1,295,106.84x = 1,788,375.42 × 812,501.64
  4. Step 4: Simplify right side
    1,295,106.84x = 1,453,057,961,685.69
  5. Step 5: Solve for x
    x = 1,453,057,961,685.69/1,295,106.84
  6. Step 6: Final answer
    x = 1,121,959.92

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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.