Finding the Fourth Proportional to 875,497.20, 1,207,980.36 and 531,325.50
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Solution
The fourth proportional to 875,497.20, 1,207,980.36 and 531,325.50 is: 733,104.31
Step by Step Solution
- Step 1: Write the proportion equation
875,497.20 : 1,207,980.36 = 531,325.50 : x - Step 2: Convert to fraction form
875,497.20/1,207,980.36 = 531,325.50/x - Step 3: Cross multiply
875,497.20x = 1,207,980.36 × 531,325.50 - Step 4: Simplify right side
875,497.20x = 641,830,768,767.18 - Step 5: Solve for x
x = 641,830,768,767.18/875,497.20 - Step 6: Final answer
x = 733,104.31
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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.