Finding the Fourth Proportional to 1,225,502.84, 1,691,139.39 and 709,174.01
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Solution
The fourth proportional to 1,225,502.84, 1,691,139.39 and 709,174.01 is: 978,628.58
Step by Step Solution
- Step 1: Write the proportion equation
1,225,502.84 : 1,691,139.39 = 709,174.01 : x - Step 2: Convert to fraction form
1,225,502.84/1,691,139.39 = 709,174.01/x - Step 3: Cross multiply
1,225,502.84x = 1,691,139.39 × 709,174.01 - Step 4: Simplify right side
1,225,502.84x = 1,199,312,102,675.25 - Step 5: Solve for x
x = 1,199,312,102,675.25/1,225,502.84 - Step 6: Final answer
x = 978,628.58
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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.