Home / 1,272,154.20-1,911,341.70-957,226.20

Finding the Fourth Proportional to 1,272,154.20, 1,911,341.70 and 957,226.20

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Solution

The fourth proportional to 1,272,154.20, 1,911,341.70 and 957,226.20 is: 1,438,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,154.20 : 1,911,341.70 = 957,226.20 : x
  2. Step 2: Convert to fraction form
    1,272,154.20/1,911,341.70 = 957,226.20/x
  3. Step 3: Cross multiply
    1,272,154.20x = 1,911,341.70 × 957,226.20
  4. Step 4: Simplify right side
    1,272,154.20x = 1,829,586,352,392.54
  5. Step 5: Solve for x
    x = 1,829,586,352,392.54/1,272,154.20
  6. Step 6: Final answer
    x = 1,438,179.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.