Home / 1,421,436.36-1,961,393.16-912,827.64

Finding the Fourth Proportional to 1,421,436.36, 1,961,393.16 and 912,827.64

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Solution

The fourth proportional to 1,421,436.36, 1,961,393.16 and 912,827.64 is: 1,259,580.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,436.36 : 1,961,393.16 = 912,827.64 : x
  2. Step 2: Convert to fraction form
    1,421,436.36/1,961,393.16 = 912,827.64/x
  3. Step 3: Cross multiply
    1,421,436.36x = 1,961,393.16 × 912,827.64
  4. Step 4: Simplify right side
    1,421,436.36x = 1,790,413,889,354.94
  5. Step 5: Solve for x
    x = 1,790,413,889,354.94/1,421,436.36
  6. Step 6: Final answer
    x = 1,259,580.76

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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.