Finding the Fourth Proportional to 1,079,655.24, 1,489,972.14 and 620,918.76
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Solution
The fourth proportional to 1,079,655.24, 1,489,972.14 and 620,918.76 is: 856,895.44
Step by Step Solution
- Step 1: Write the proportion equation
1,079,655.24 : 1,489,972.14 = 620,918.76 : x - Step 2: Convert to fraction form
1,079,655.24/1,489,972.14 = 620,918.76/x - Step 3: Cross multiply
1,079,655.24x = 1,489,972.14 × 620,918.76 - Step 4: Simplify right side
1,079,655.24x = 925,151,653,603.35 - Step 5: Solve for x
x = 925,151,653,603.35/1,079,655.24 - Step 6: Final answer
x = 856,895.44
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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.