Home / 1,152,111.80-1,728,167.70-1,054,134.20

Finding the Fourth Proportional to 1,152,111.80, 1,728,167.70 and 1,054,134.20

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Solution

The fourth proportional to 1,152,111.80, 1,728,167.70 and 1,054,134.20 is: 1,581,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,111.80 : 1,728,167.70 = 1,054,134.20 : x
  2. Step 2: Convert to fraction form
    1,152,111.80/1,728,167.70 = 1,054,134.20/x
  3. Step 3: Cross multiply
    1,152,111.80x = 1,728,167.70 × 1,054,134.20
  4. Step 4: Simplify right side
    1,152,111.80x = 1,821,720,675,905.34
  5. Step 5: Solve for x
    x = 1,821,720,675,905.34/1,152,111.80
  6. Step 6: Final answer
    x = 1,581,201.30

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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.