Home / 860,326.80-1,290,662.46-481,785.86

Finding the Fourth Proportional to 860,326.80, 1,290,662.46 and 481,785.86

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Solution

The fourth proportional to 860,326.80, 1,290,662.46 and 481,785.86 is: 722,775.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,326.80 : 1,290,662.46 = 481,785.86 : x
  2. Step 2: Convert to fraction form
    860,326.80/1,290,662.46 = 481,785.86/x
  3. Step 3: Cross multiply
    860,326.80x = 1,290,662.46 × 481,785.86
  4. Step 4: Simplify right side
    860,326.80x = 621,822,916,807.50
  5. Step 5: Solve for x
    x = 621,822,916,807.50/860,326.80
  6. Step 6: Final answer
    x = 722,775.25

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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.