Home / 856,374.98-1,284,583.32-287,764.32

Finding the Fourth Proportional to 856,374.98, 1,284,583.32 and 287,764.32

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Solution

The fourth proportional to 856,374.98, 1,284,583.32 and 287,764.32 is: 431,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,374.98 : 1,284,583.32 = 287,764.32 : x
  2. Step 2: Convert to fraction form
    856,374.98/1,284,583.32 = 287,764.32/x
  3. Step 3: Cross multiply
    856,374.98x = 1,284,583.32 × 287,764.32
  4. Step 4: Simplify right side
    856,374.98x = 369,657,245,553.45
  5. Step 5: Solve for x
    x = 369,657,245,553.45/856,374.98
  6. Step 6: Final answer
    x = 431,653.49

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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.