Finding the Fourth Proportional to 715,572.18, 987,078.44 and 446,833.62
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Solution
The fourth proportional to 715,572.18, 987,078.44 and 446,833.62 is: 616,373.64
Step by Step Solution
- Step 1: Write the proportion equation
715,572.18 : 987,078.44 = 446,833.62 : x - Step 2: Convert to fraction form
715,572.18/987,078.44 = 446,833.62/x - Step 3: Cross multiply
715,572.18x = 987,078.44 × 446,833.62 - Step 4: Simplify right side
715,572.18x = 441,059,832,569.15 - Step 5: Solve for x
x = 441,059,832,569.15/715,572.18 - Step 6: Final answer
x = 616,373.64
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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.