Finding the Fourth Proportional to 1,361,316.09, 1,878,581.85 and 749,462.75
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Solution
The fourth proportional to 1,361,316.09, 1,878,581.85 and 749,462.75 is: 1,034,239.67
Step by Step Solution
- Step 1: Write the proportion equation
1,361,316.09 : 1,878,581.85 = 749,462.75 : x - Step 2: Convert to fraction form
1,361,316.09/1,878,581.85 = 749,462.75/x - Step 3: Cross multiply
1,361,316.09x = 1,878,581.85 × 749,462.75 - Step 4: Simplify right side
1,361,316.09x = 1,407,927,110,008.18 - Step 5: Solve for x
x = 1,407,927,110,008.18/1,361,316.09 - Step 6: Final answer
x = 1,034,239.67
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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.