Home / 1,675,436.87-2,312,112.93-911,495.90

Finding the Fourth Proportional to 1,675,436.87, 2,312,112.93 and 911,495.90

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Solution

The fourth proportional to 1,675,436.87, 2,312,112.93 and 911,495.90 is: 1,257,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675,436.87 : 2,312,112.93 = 911,495.90 : x
  2. Step 2: Convert to fraction form
    1,675,436.87/2,312,112.93 = 911,495.90/x
  3. Step 3: Cross multiply
    1,675,436.87x = 2,312,112.93 × 911,495.90
  4. Step 4: Simplify right side
    1,675,436.87x = 2,107,481,458,394.16
  5. Step 5: Solve for x
    x = 2,107,481,458,394.16/1,675,436.87
  6. Step 6: Final answer
    x = 1,257,869.81

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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.