Home / 1,257,963.40-1,886,945.10-838,059.40

Finding the Fourth Proportional to 1,257,963.40, 1,886,945.10 and 838,059.40

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Solution

The fourth proportional to 1,257,963.40, 1,886,945.10 and 838,059.40 is: 1,257,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,963.40 : 1,886,945.10 = 838,059.40 : x
  2. Step 2: Convert to fraction form
    1,257,963.40/1,886,945.10 = 838,059.40/x
  3. Step 3: Cross multiply
    1,257,963.40x = 1,886,945.10 × 838,059.40
  4. Step 4: Simplify right side
    1,257,963.40x = 1,581,372,078,338.94
  5. Step 5: Solve for x
    x = 1,581,372,078,338.94/1,257,963.40
  6. Step 6: Final answer
    x = 1,257,089.10

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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.