Finding the Fourth Proportional to 1,232,416.12, 1,700,442.66 and 715,863.14
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Solution
The fourth proportional to 1,232,416.12, 1,700,442.66 and 715,863.14 is: 987,721.76
Step by Step Solution
- Step 1: Write the proportion equation
1,232,416.12 : 1,700,442.66 = 715,863.14 : x - Step 2: Convert to fraction form
1,232,416.12/1,700,442.66 = 715,863.14/x - Step 3: Cross multiply
1,232,416.12x = 1,700,442.66 × 715,863.14 - Step 4: Simplify right side
1,232,416.12x = 1,217,284,221,977.55 - Step 5: Solve for x
x = 1,217,284,221,977.55/1,232,416.12 - Step 6: Final answer
x = 987,721.76
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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.