Finding the Fourth Proportional to 492,787.84, 679,431.08 and 411,233.68
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Solution
The fourth proportional to 492,787.84, 679,431.08 and 411,233.68 is: 566,988.31
Step by Step Solution
- Step 1: Write the proportion equation
492,787.84 : 679,431.08 = 411,233.68 : x - Step 2: Convert to fraction form
492,787.84/679,431.08 = 411,233.68/x - Step 3: Cross multiply
492,787.84x = 679,431.08 × 411,233.68 - Step 4: Simplify right side
492,787.84x = 279,404,943,334.77 - Step 5: Solve for x
x = 279,404,943,334.77/492,787.84 - Step 6: Final answer
x = 566,988.31
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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.