Finding the Fourth Proportional to 913,743.16, 1,258,149.12 and 811,591.12
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Solution
The fourth proportional to 913,743.16, 1,258,149.12 and 811,591.12 is: 1,117,494.17
Step by Step Solution
- Step 1: Write the proportion equation
913,743.16 : 1,258,149.12 = 811,591.12 : x - Step 2: Convert to fraction form
913,743.16/1,258,149.12 = 811,591.12/x - Step 3: Cross multiply
913,743.16x = 1,258,149.12 × 811,591.12 - Step 4: Simplify right side
913,743.16x = 1,021,102,653,427.81 - Step 5: Solve for x
x = 1,021,102,653,427.81/913,743.16 - Step 6: Final answer
x = 1,117,494.17
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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.