Home / 1,672,728.09-2,308,478.88-947,581.75

Finding the Fourth Proportional to 1,672,728.09, 2,308,478.88 and 947,581.75

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Solution

The fourth proportional to 1,672,728.09, 2,308,478.88 and 947,581.75 is: 1,307,727.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672,728.09 : 2,308,478.88 = 947,581.75 : x
  2. Step 2: Convert to fraction form
    1,672,728.09/2,308,478.88 = 947,581.75/x
  3. Step 3: Cross multiply
    1,672,728.09x = 2,308,478.88 × 947,581.75
  4. Step 4: Simplify right side
    1,672,728.09x = 2,187,472,456,948.44
  5. Step 5: Solve for x
    x = 2,187,472,456,948.44/1,672,728.09
  6. Step 6: Final answer
    x = 1,307,727.46

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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.