Home / 672,275.40-1,008,413.10-298,336.20

Finding the Fourth Proportional to 672,275.40, 1,008,413.10 and 298,336.20

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Solution

The fourth proportional to 672,275.40, 1,008,413.10 and 298,336.20 is: 447,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,275.40 : 1,008,413.10 = 298,336.20 : x
  2. Step 2: Convert to fraction form
    672,275.40/1,008,413.10 = 298,336.20/x
  3. Step 3: Cross multiply
    672,275.40x = 1,008,413.10 × 298,336.20
  4. Step 4: Simplify right side
    672,275.40x = 300,846,132,284.22
  5. Step 5: Solve for x
    x = 300,846,132,284.22/672,275.40
  6. Step 6: Final answer
    x = 447,504.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.