Home / 856,334.63-1,284,649.67-287,770.32

Finding the Fourth Proportional to 856,334.63, 1,284,649.67 and 287,770.32

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Solution

The fourth proportional to 856,334.63, 1,284,649.67 and 287,770.32 is: 431,705.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,334.63 : 1,284,649.67 = 287,770.32 : x
  2. Step 2: Convert to fraction form
    856,334.63/1,284,649.67 = 287,770.32/x
  3. Step 3: Cross multiply
    856,334.63x = 1,284,649.67 × 287,770.32
  4. Step 4: Simplify right side
    856,334.63x = 369,684,047,343.22
  5. Step 5: Solve for x
    x = 369,684,047,343.22/856,334.63
  6. Step 6: Final answer
    x = 431,705.12

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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.