Home / 1,189,168.80-1,783,746.54-290,615.28

Finding the Fourth Proportional to 1,189,168.80, 1,783,746.54 and 290,615.28

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Solution

The fourth proportional to 1,189,168.80, 1,783,746.54 and 290,615.28 is: 435,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,168.80 : 1,783,746.54 = 290,615.28 : x
  2. Step 2: Convert to fraction form
    1,189,168.80/1,783,746.54 = 290,615.28/x
  3. Step 3: Cross multiply
    1,189,168.80x = 1,783,746.54 × 290,615.28
  4. Step 4: Simplify right side
    1,189,168.80x = 518,384,000,171.13
  5. Step 5: Solve for x
    x = 518,384,000,171.13/1,189,168.80
  6. Step 6: Final answer
    x = 435,921.29

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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.