Finding the Fourth Proportional to 1,354,858.76, 1,869,730.76 and 742,972.68
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Solution
The fourth proportional to 1,354,858.76, 1,869,730.76 and 742,972.68 is: 1,025,316.38
Step by Step Solution
- Step 1: Write the proportion equation
1,354,858.76 : 1,869,730.76 = 742,972.68 : x - Step 2: Convert to fraction form
1,354,858.76/1,869,730.76 = 742,972.68/x - Step 3: Cross multiply
1,354,858.76x = 1,869,730.76 × 742,972.68 - Step 4: Simplify right side
1,354,858.76x = 1,389,158,873,635.64 - Step 5: Solve for x
x = 1,389,158,873,635.64/1,354,858.76 - Step 6: Final answer
x = 1,025,316.38
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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.