Finding the Fourth Proportional to 824,875.14, 1,138,341.15 and 462,379.62
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Solution
The fourth proportional to 824,875.14, 1,138,341.15 and 462,379.62 is: 638,091.42
Step by Step Solution
- Step 1: Write the proportion equation
824,875.14 : 1,138,341.15 = 462,379.62 : x - Step 2: Convert to fraction form
824,875.14/1,138,341.15 = 462,379.62/x - Step 3: Cross multiply
824,875.14x = 1,138,341.15 × 462,379.62 - Step 4: Simplify right side
824,875.14x = 526,345,748,367.36 - Step 5: Solve for x
x = 526,345,748,367.36/824,875.14 - Step 6: Final answer
x = 638,091.42
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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.