Finding the Fourth Proportional to 563,699.60, 777,888.60 and 309,042.08
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Solution
The fourth proportional to 563,699.60, 777,888.60 and 309,042.08 is: 426,468.83
Step by Step Solution
- Step 1: Write the proportion equation
563,699.60 : 777,888.60 = 309,042.08 : x - Step 2: Convert to fraction form
563,699.60/777,888.60 = 309,042.08/x - Step 3: Cross multiply
563,699.60x = 777,888.60 × 309,042.08 - Step 4: Simplify right side
563,699.60x = 240,400,310,952.29 - Step 5: Solve for x
x = 240,400,310,952.29/563,699.60 - Step 6: Final answer
x = 426,468.83
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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.