Home / 1,131,113.32-1,560,966.18-621,828.52

Finding the Fourth Proportional to 1,131,113.32, 1,560,966.18 and 621,828.52

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Solution

The fourth proportional to 1,131,113.32, 1,560,966.18 and 621,828.52 is: 858,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,113.32 : 1,560,966.18 = 621,828.52 : x
  2. Step 2: Convert to fraction form
    1,131,113.32/1,560,966.18 = 621,828.52/x
  3. Step 3: Cross multiply
    1,131,113.32x = 1,560,966.18 × 621,828.52
  4. Step 4: Simplify right side
    1,131,113.32x = 970,653,289,479.45
  5. Step 5: Solve for x
    x = 970,653,289,479.45/1,131,113.32
  6. Step 6: Final answer
    x = 858,139.74

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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.