Finding the Fourth Proportional to 1,215,356.09, 1,677,258.68 and 671,480.21
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Solution
The fourth proportional to 1,215,356.09, 1,677,258.68 and 671,480.21 is: 926,679.86
Step by Step Solution
- Step 1: Write the proportion equation
1,215,356.09 : 1,677,258.68 = 671,480.21 : x - Step 2: Convert to fraction form
1,215,356.09/1,677,258.68 = 671,480.21/x - Step 3: Cross multiply
1,215,356.09x = 1,677,258.68 × 671,480.21 - Step 4: Simplify right side
1,215,356.09x = 1,126,246,011,506.47 - Step 5: Solve for x
x = 1,126,246,011,506.47/1,215,356.09 - Step 6: Final answer
x = 926,679.86
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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.