Home / 856,498.80-1,283,413.80-323,729.20

Finding the Fourth Proportional to 856,498.80, 1,283,413.80 and 323,729.20

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Solution

The fourth proportional to 856,498.80, 1,283,413.80 and 323,729.20 is: 485,089.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,498.80 : 1,283,413.80 = 323,729.20 : x
  2. Step 2: Convert to fraction form
    856,498.80/1,283,413.80 = 323,729.20/x
  3. Step 3: Cross multiply
    856,498.80x = 1,283,413.80 × 323,729.20
  4. Step 4: Simplify right side
    856,498.80x = 415,478,522,742.96
  5. Step 5: Solve for x
    x = 415,478,522,742.96/856,498.80
  6. Step 6: Final answer
    x = 485,089.44

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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.