Finding the Fourth Proportional to 903,278, 1,246,521.72 and 521,304.80
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Solution
The fourth proportional to 903,278, 1,246,521.72 and 521,304.80 is: 719,399.52
Step by Step Solution
- Step 1: Write the proportion equation
903,278 : 1,246,521.72 = 521,304.80 : x - Step 2: Convert to fraction form
903,278/1,246,521.72 = 521,304.80/x - Step 3: Cross multiply
903,278x = 1,246,521.72 × 521,304.80 - Step 4: Simplify right side
903,278x = 649,817,755,940.26 - Step 5: Solve for x
x = 649,817,755,940.26/903,278 - Step 6: Final answer
x = 719,399.52
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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.