Home / 1,276,901.70-1,915,352.55-1,071,615.30

Finding the Fourth Proportional to 1,276,901.70, 1,915,352.55 and 1,071,615.30

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Solution

The fourth proportional to 1,276,901.70, 1,915,352.55 and 1,071,615.30 is: 1,607,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,901.70 : 1,915,352.55 = 1,071,615.30 : x
  2. Step 2: Convert to fraction form
    1,276,901.70/1,915,352.55 = 1,071,615.30/x
  3. Step 3: Cross multiply
    1,276,901.70x = 1,915,352.55 × 1,071,615.30
  4. Step 4: Simplify right side
    1,276,901.70x = 2,052,521,097,474.02
  5. Step 5: Solve for x
    x = 2,052,521,097,474.02/1,276,901.70
  6. Step 6: Final answer
    x = 1,607,422.95

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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.