Home / 860,012.87-1,290,175.01-354,292.82

Finding the Fourth Proportional to 860,012.87, 1,290,175.01 and 354,292.82

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Solution

The fourth proportional to 860,012.87, 1,290,175.01 and 354,292.82 is: 531,503.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,012.87 : 1,290,175.01 = 354,292.82 : x
  2. Step 2: Convert to fraction form
    860,012.87/1,290,175.01 = 354,292.82/x
  3. Step 3: Cross multiply
    860,012.87x = 1,290,175.01 × 354,292.82
  4. Step 4: Simplify right side
    860,012.87x = 457,099,734,364.09
  5. Step 5: Solve for x
    x = 457,099,734,364.09/860,012.87
  6. Step 6: Final answer
    x = 531,503.37

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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.