Finding the Fourth Proportional to 520,193.84, 715,109.88 and 447,329.48
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Solution
The fourth proportional to 520,193.84, 715,109.88 and 447,329.48 is: 614,943.33
Step by Step Solution
- Step 1: Write the proportion equation
520,193.84 : 715,109.88 = 447,329.48 : x - Step 2: Convert to fraction form
520,193.84/715,109.88 = 447,329.48/x - Step 3: Cross multiply
520,193.84x = 715,109.88 × 447,329.48 - Step 4: Simplify right side
520,193.84x = 319,889,730,763.26 - Step 5: Solve for x
x = 319,889,730,763.26/520,193.84 - Step 6: Final answer
x = 614,943.33
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.