Home / 1,130,765.78-1,560,390.80-621,468.56

Finding the Fourth Proportional to 1,130,765.78, 1,560,390.80 and 621,468.56

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Solution

The fourth proportional to 1,130,765.78, 1,560,390.80 and 621,468.56 is: 857,590.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,765.78 : 1,560,390.80 = 621,468.56 : x
  2. Step 2: Convert to fraction form
    1,130,765.78/1,560,390.80 = 621,468.56/x
  3. Step 3: Cross multiply
    1,130,765.78x = 1,560,390.80 × 621,468.56
  4. Step 4: Simplify right side
    1,130,765.78x = 969,733,823,513.25
  5. Step 5: Solve for x
    x = 969,733,823,513.25/1,130,765.78
  6. Step 6: Final answer
    x = 857,590.35

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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.