Finding the Fourth Proportional to 1,122,685.76, 1,549,328.64 and 613,419.68
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Solution
The fourth proportional to 1,122,685.76, 1,549,328.64 and 613,419.68 is: 846,531.34
Step by Step Solution
- Step 1: Write the proportion equation
1,122,685.76 : 1,549,328.64 = 613,419.68 : x - Step 2: Convert to fraction form
1,122,685.76/1,549,328.64 = 613,419.68/x - Step 3: Cross multiply
1,122,685.76x = 1,549,328.64 × 613,419.68 - Step 4: Simplify right side
1,122,685.76x = 950,388,678,563.64 - Step 5: Solve for x
x = 950,388,678,563.64/1,122,685.76 - Step 6: Final answer
x = 846,531.34
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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.