Home / 306,826.76-423,413.07-297,772.58

Finding the Fourth Proportional to 306,826.76, 423,413.07 and 297,772.58

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Solution

The fourth proportional to 306,826.76, 423,413.07 and 297,772.58 is: 410,918.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,826.76 : 423,413.07 = 297,772.58 : x
  2. Step 2: Convert to fraction form
    306,826.76/423,413.07 = 297,772.58/x
  3. Step 3: Cross multiply
    306,826.76x = 423,413.07 × 297,772.58
  4. Step 4: Simplify right side
    306,826.76x = 126,080,802,259.62
  5. Step 5: Solve for x
    x = 126,080,802,259.62/306,826.76
  6. Step 6: Final answer
    x = 410,918.53

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1.5x scale

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.