Home / 1,247,623.83-1,870,133.25-905,240.07

Finding the Fourth Proportional to 1,247,623.83, 1,870,133.25 and 905,240.07

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Solution

The fourth proportional to 1,247,623.83, 1,870,133.25 and 905,240.07 is: 1,356,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,623.83 : 1,870,133.25 = 905,240.07 : x
  2. Step 2: Convert to fraction form
    1,247,623.83/1,870,133.25 = 905,240.07/x
  3. Step 3: Cross multiply
    1,247,623.83x = 1,870,133.25 × 905,240.07
  4. Step 4: Simplify right side
    1,247,623.83x = 1,692,919,554,139.33
  5. Step 5: Solve for x
    x = 1,692,919,554,139.33/1,247,623.83
  6. Step 6: Final answer
    x = 1,356,915.05

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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.