Finding the Fourth Proportional to 1,638,703.68, 2,260,129.14 and 1,065,926.76
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Solution
The fourth proportional to 1,638,703.68, 2,260,129.14 and 1,065,926.76 is: 1,470,145.07
Step by Step Solution
- Step 1: Write the proportion equation
1,638,703.68 : 2,260,129.14 = 1,065,926.76 : x - Step 2: Convert to fraction form
1,638,703.68/2,260,129.14 = 1,065,926.76/x - Step 3: Cross multiply
1,638,703.68x = 2,260,129.14 × 1,065,926.76 - Step 4: Simplify right side
1,638,703.68x = 2,409,132,131,381.79 - Step 5: Solve for x
x = 2,409,132,131,381.79/1,638,703.68 - Step 6: Final answer
x = 1,470,145.07
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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.