Finding the Fourth Proportional to 1,354,362.44, 1,868,979.64 and 742,494.28
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Solution
The fourth proportional to 1,354,362.44, 1,868,979.64 and 742,494.28 is: 1,024,619.89
Step by Step Solution
- Step 1: Write the proportion equation
1,354,362.44 : 1,868,979.64 = 742,494.28 : x - Step 2: Convert to fraction form
1,354,362.44/1,868,979.64 = 742,494.28/x - Step 3: Cross multiply
1,354,362.44x = 1,868,979.64 × 742,494.28 - Step 4: Simplify right side
1,354,362.44x = 1,387,706,692,136.46 - Step 5: Solve for x
x = 1,387,706,692,136.46/1,354,362.44 - Step 6: Final answer
x = 1,024,619.89
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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.