Finding the Fourth Proportional to 831,036.83, 1,246,555.24 and 689,319.23
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Solution
The fourth proportional to 831,036.83, 1,246,555.24 and 689,319.23 is: 1,033,978.84
Step by Step Solution
- Step 1: Write the proportion equation
831,036.83 : 1,246,555.24 = 689,319.23 : x - Step 2: Convert to fraction form
831,036.83/1,246,555.24 = 689,319.23/x - Step 3: Cross multiply
831,036.83x = 1,246,555.24 × 689,319.23 - Step 4: Simplify right side
831,036.83x = 859,274,490,233.19 - Step 5: Solve for x
x = 859,274,490,233.19/831,036.83 - Step 6: Final answer
x = 1,033,978.84
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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.