Home / 1,130,775.76-1,560,404.64-621,478.56

Finding the Fourth Proportional to 1,130,775.76, 1,560,404.64 and 621,478.56

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Solution

The fourth proportional to 1,130,775.76, 1,560,404.64 and 621,478.56 is: 857,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,775.76 : 1,560,404.64 = 621,478.56 : x
  2. Step 2: Convert to fraction form
    1,130,775.76/1,560,404.64 = 621,478.56/x
  3. Step 3: Cross multiply
    1,130,775.76x = 1,560,404.64 × 621,478.56
  4. Step 4: Simplify right side
    1,130,775.76x = 969,758,028,684.52
  5. Step 5: Solve for x
    x = 969,758,028,684.52/1,130,775.76
  6. Step 6: Final answer
    x = 857,604.19

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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.