Finding the Fourth Proportional to 888,639.28, 1,226,317.08 and 480,739.88
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Solution
The fourth proportional to 888,639.28, 1,226,317.08 and 480,739.88 is: 663,418.26
Step by Step Solution
- Step 1: Write the proportion equation
888,639.28 : 1,226,317.08 = 480,739.88 : x - Step 2: Convert to fraction form
888,639.28/1,226,317.08 = 480,739.88/x - Step 3: Cross multiply
888,639.28x = 1,226,317.08 × 480,739.88 - Step 4: Simplify right side
888,639.28x = 589,539,525,881.15 - Step 5: Solve for x
x = 589,539,525,881.15/888,639.28 - Step 6: Final answer
x = 663,418.26
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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.