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Finding the Fourth Proportional to 1,050.01, 1,447.77 and 860.32

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Solution

The fourth proportional to 1,050.01, 1,447.77 and 860.32 is: 1,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.01 : 1,447.77 = 860.32 : x
  2. Step 2: Convert to fraction form
    1,050.01/1,447.77 = 860.32/x
  3. Step 3: Cross multiply
    1,050.01x = 1,447.77 × 860.32
  4. Step 4: Simplify right side
    1,050.01x = 1,245,550.52
  5. Step 5: Solve for x
    x = 1,245,550.52/1,050.01
  6. Step 6: Final answer
    x = 1,186.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.