Home / 1,247,637.26-1,870,153.41-905,253.50

Finding the Fourth Proportional to 1,247,637.26, 1,870,153.41 and 905,253.50

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Solution

The fourth proportional to 1,247,637.26, 1,870,153.41 and 905,253.50 is: 1,356,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,637.26 : 1,870,153.41 = 905,253.50 : x
  2. Step 2: Convert to fraction form
    1,247,637.26/1,870,153.41 = 905,253.50/x
  3. Step 3: Cross multiply
    1,247,637.26x = 1,870,153.41 × 905,253.50
  4. Step 4: Simplify right side
    1,247,637.26x = 1,692,962,928,009.52
  5. Step 5: Solve for x
    x = 1,692,962,928,009.52/1,247,637.26
  6. Step 6: Final answer
    x = 1,356,935.21

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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.