Home / 1,130,776.78-1,560,405.96-621,479.56

Finding the Fourth Proportional to 1,130,776.78, 1,560,405.96 and 621,479.56

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Solution

The fourth proportional to 1,130,776.78, 1,560,405.96 and 621,479.56 is: 857,605.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,776.78 : 1,560,405.96 = 621,479.56 : x
  2. Step 2: Convert to fraction form
    1,130,776.78/1,560,405.96 = 621,479.56/x
  3. Step 3: Cross multiply
    1,130,776.78x = 1,560,405.96 × 621,479.56
  4. Step 4: Simplify right side
    1,130,776.78x = 969,760,409,442.18
  5. Step 5: Solve for x
    x = 969,760,409,442.18/1,130,776.78
  6. Step 6: Final answer
    x = 857,605.52

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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.