Finding the Fourth Proportional to 742,296.54, 1,112,452.17 and 386,563.74
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Solution
The fourth proportional to 742,296.54, 1,112,452.17 and 386,563.74 is: 579,328.68
Step by Step Solution
- Step 1: Write the proportion equation
742,296.54 : 1,112,452.17 = 386,563.74 : x - Step 2: Convert to fraction form
742,296.54/1,112,452.17 = 386,563.74/x - Step 3: Cross multiply
742,296.54x = 1,112,452.17 × 386,563.74 - Step 4: Simplify right side
742,296.54x = 430,033,671,406.32 - Step 5: Solve for x
x = 430,033,671,406.32/742,296.54 - Step 6: Final answer
x = 579,328.68
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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.