Finding the Fourth Proportional to 1,253,381.86, 1,729,484.48 and 716,734.18
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Solution
The fourth proportional to 1,253,381.86, 1,729,484.48 and 716,734.18 is: 988,988.82
Step by Step Solution
- Step 1: Write the proportion equation
1,253,381.86 : 1,729,484.48 = 716,734.18 : x - Step 2: Convert to fraction form
1,253,381.86/1,729,484.48 = 716,734.18/x - Step 3: Cross multiply
1,253,381.86x = 1,729,484.48 × 716,734.18 - Step 4: Simplify right side
1,253,381.86x = 1,239,580,640,595.53 - Step 5: Solve for x
x = 1,239,580,640,595.53/1,253,381.86 - Step 6: Final answer
x = 988,988.82
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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.