Home / 656,629.50-906,148.80-354,823.50

Finding the Fourth Proportional to 656,629.50, 906,148.80 and 354,823.50

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Solution

The fourth proportional to 656,629.50, 906,148.80 and 354,823.50 is: 489,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,629.50 : 906,148.80 = 354,823.50 : x
  2. Step 2: Convert to fraction form
    656,629.50/906,148.80 = 354,823.50/x
  3. Step 3: Cross multiply
    656,629.50x = 906,148.80 × 354,823.50
  4. Step 4: Simplify right side
    656,629.50x = 321,522,888,736.80
  5. Step 5: Solve for x
    x = 321,522,888,736.80/656,629.50
  6. Step 6: Final answer
    x = 489,656.48

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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.