Home / 1,071,576.72-1,478,668.08-641,845.80

Finding the Fourth Proportional to 1,071,576.72, 1,478,668.08 and 641,845.80

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Solution

The fourth proportional to 1,071,576.72, 1,478,668.08 and 641,845.80 is: 885,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,576.72 : 1,478,668.08 = 641,845.80 : x
  2. Step 2: Convert to fraction form
    1,071,576.72/1,478,668.08 = 641,845.80/x
  3. Step 3: Cross multiply
    1,071,576.72x = 1,478,668.08 × 641,845.80
  4. Step 4: Simplify right side
    1,071,576.72x = 949,076,896,742.06
  5. Step 5: Solve for x
    x = 949,076,896,742.06/1,071,576.72
  6. Step 6: Final answer
    x = 885,682.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.