Finding the Fourth Proportional to 553,352.18, 763,654.43 and 338,424.75
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Solution
The fourth proportional to 553,352.18, 763,654.43 and 338,424.75 is: 467,043.54
Step by Step Solution
- Step 1: Write the proportion equation
553,352.18 : 763,654.43 = 338,424.75 : x - Step 2: Convert to fraction form
553,352.18/763,654.43 = 338,424.75/x - Step 3: Cross multiply
553,352.18x = 763,654.43 × 338,424.75 - Step 4: Simplify right side
553,352.18x = 258,439,560,405.20 - Step 5: Solve for x
x = 258,439,560,405.20/553,352.18 - Step 6: Final answer
x = 467,043.54
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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.