Home / 1,890,867.28-2,609,413.50-1,031,431.36

Finding the Fourth Proportional to 1,890,867.28, 2,609,413.50 and 1,031,431.36

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Solution

The fourth proportional to 1,890,867.28, 2,609,413.50 and 1,031,431.36 is: 1,423,384.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,867.28 : 2,609,413.50 = 1,031,431.36 : x
  2. Step 2: Convert to fraction form
    1,890,867.28/2,609,413.50 = 1,031,431.36/x
  3. Step 3: Cross multiply
    1,890,867.28x = 2,609,413.50 × 1,031,431.36
  4. Step 4: Simplify right side
    1,890,867.28x = 2,691,430,915,107.36
  5. Step 5: Solve for x
    x = 2,691,430,915,107.36/1,890,867.28
  6. Step 6: Final answer
    x = 1,423,384.36

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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.