Home / 1,180,828.80-1,771,243.20-1,089,590.40

Finding the Fourth Proportional to 1,180,828.80, 1,771,243.20 and 1,089,590.40

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Solution

The fourth proportional to 1,180,828.80, 1,771,243.20 and 1,089,590.40 is: 1,634,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,828.80 : 1,771,243.20 = 1,089,590.40 : x
  2. Step 2: Convert to fraction form
    1,180,828.80/1,771,243.20 = 1,089,590.40/x
  3. Step 3: Cross multiply
    1,180,828.80x = 1,771,243.20 × 1,089,590.40
  4. Step 4: Simplify right side
    1,180,828.80x = 1,929,929,586,785.28
  5. Step 5: Solve for x
    x = 1,929,929,586,785.28/1,180,828.80
  6. Step 6: Final answer
    x = 1,634,385.60

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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.