Finding the Fourth Proportional to 819,511.64, 1,128,352.54 and 696,762.62
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Solution
The fourth proportional to 819,511.64, 1,128,352.54 and 696,762.62 is: 959,344.36
Step by Step Solution
- Step 1: Write the proportion equation
819,511.64 : 1,128,352.54 = 696,762.62 : x - Step 2: Convert to fraction form
819,511.64/1,128,352.54 = 696,762.62/x - Step 3: Cross multiply
819,511.64x = 1,128,352.54 × 696,762.62 - Step 4: Simplify right side
819,511.64x = 786,193,872,054.06 - Step 5: Solve for x
x = 786,193,872,054.06/819,511.64 - Step 6: Final answer
x = 959,344.36
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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.