Home / 1,130,774.78-1,560,403.20-621,477.56

Finding the Fourth Proportional to 1,130,774.78, 1,560,403.20 and 621,477.56

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Solution

The fourth proportional to 1,130,774.78, 1,560,403.20 and 621,477.56 is: 857,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,774.78 : 1,560,403.20 = 621,477.56 : x
  2. Step 2: Convert to fraction form
    1,130,774.78/1,560,403.20 = 621,477.56/x
  3. Step 3: Cross multiply
    1,130,774.78x = 1,560,403.20 × 621,477.56
  4. Step 4: Simplify right side
    1,130,774.78x = 969,755,573,352.19
  5. Step 5: Solve for x
    x = 969,755,573,352.19/1,130,774.78
  6. Step 6: Final answer
    x = 857,602.76

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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.