Finding the Fourth Proportional to 1,111,465.08, 1,533,257.49 and 702,878.80
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Solution
The fourth proportional to 1,111,465.08, 1,533,257.49 and 702,878.80 is: 969,615.87
Step by Step Solution
- Step 1: Write the proportion equation
1,111,465.08 : 1,533,257.49 = 702,878.80 : x - Step 2: Convert to fraction form
1,111,465.08/1,533,257.49 = 702,878.80/x - Step 3: Cross multiply
1,111,465.08x = 1,533,257.49 × 702,878.80 - Step 4: Simplify right side
1,111,465.08x = 1,077,694,184,662.21 - Step 5: Solve for x
x = 1,077,694,184,662.21/1,111,465.08 - Step 6: Final answer
x = 969,615.87
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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.