Finding the Fourth Proportional to 1,643,466.33, 2,268,071.15 and 918,331.65
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Solution
The fourth proportional to 1,643,466.33, 2,268,071.15 and 918,331.65 is: 1,267,346.63
Step by Step Solution
- Step 1: Write the proportion equation
1,643,466.33 : 2,268,071.15 = 918,331.65 : x - Step 2: Convert to fraction form
1,643,466.33/2,268,071.15 = 918,331.65/x - Step 3: Cross multiply
1,643,466.33x = 2,268,071.15 × 918,331.65 - Step 4: Simplify right side
1,643,466.33x = 2,082,841,516,905.24 - Step 5: Solve for x
x = 2,082,841,516,905.24/1,643,466.33 - Step 6: Final answer
x = 1,267,346.63
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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.