Home / 1,542,309.64-2,128,365.30-853,915.48

Finding the Fourth Proportional to 1,542,309.64, 2,128,365.30 and 853,915.48

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Solution

The fourth proportional to 1,542,309.64, 2,128,365.30 and 853,915.48 is: 1,178,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,309.64 : 2,128,365.30 = 853,915.48 : x
  2. Step 2: Convert to fraction form
    1,542,309.64/2,128,365.30 = 853,915.48/x
  3. Step 3: Cross multiply
    1,542,309.64x = 2,128,365.30 × 853,915.48
  4. Step 4: Simplify right side
    1,542,309.64x = 1,817,444,076,764.84
  5. Step 5: Solve for x
    x = 1,817,444,076,764.84/1,542,309.64
  6. Step 6: Final answer
    x = 1,178,391.18

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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.