Home / 1,178,348.90-1,768,298.37-646,243.60

Finding the Fourth Proportional to 1,178,348.90, 1,768,298.37 and 646,243.60

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Solution

The fourth proportional to 1,178,348.90, 1,768,298.37 and 646,243.60 is: 969,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,348.90 : 1,768,298.37 = 646,243.60 : x
  2. Step 2: Convert to fraction form
    1,178,348.90/1,768,298.37 = 646,243.60/x
  3. Step 3: Cross multiply
    1,178,348.90x = 1,768,298.37 × 646,243.60
  4. Step 4: Simplify right side
    1,178,348.90x = 1,142,751,492,430.22
  5. Step 5: Solve for x
    x = 1,142,751,492,430.22/1,178,348.90
  6. Step 6: Final answer
    x = 969,790.44

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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.