Finding the Fourth Proportional to 715,568.19, 987,072.91 and 446,829.63
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Solution
The fourth proportional to 715,568.19, 987,072.91 and 446,829.63 is: 616,368.12
Step by Step Solution
- Step 1: Write the proportion equation
715,568.19 : 987,072.91 = 446,829.63 : x - Step 2: Convert to fraction form
715,568.19/987,072.91 = 446,829.63/x - Step 3: Cross multiply
715,568.19x = 987,072.91 × 446,829.63 - Step 4: Simplify right side
715,568.19x = 441,053,423,158.32 - Step 5: Solve for x
x = 441,053,423,158.32/715,568.19 - Step 6: Final answer
x = 616,368.12
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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.