Finding the Fourth Proportional to 553,353.19, 763,655.82 and 338,425.75
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Solution
The fourth proportional to 553,353.19, 763,655.82 and 338,425.75 is: 467,044.92
Step by Step Solution
- Step 1: Write the proportion equation
553,353.19 : 763,655.82 = 338,425.75 : x - Step 2: Convert to fraction form
553,353.19/763,655.82 = 338,425.75/x - Step 3: Cross multiply
553,353.19x = 763,655.82 × 338,425.75 - Step 4: Simplify right side
553,353.19x = 258,440,793,625.37 - Step 5: Solve for x
x = 258,440,793,625.37/553,353.19 - Step 6: Final answer
x = 467,044.92
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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.