Finding the Fourth Proportional to 729,387.84, 1,006,542 and 407,092.08
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Solution
The fourth proportional to 729,387.84, 1,006,542 and 407,092.08 is: 561,779.69
Step by Step Solution
- Step 1: Write the proportion equation
729,387.84 : 1,006,542 = 407,092.08 : x - Step 2: Convert to fraction form
729,387.84/1,006,542 = 407,092.08/x - Step 3: Cross multiply
729,387.84x = 1,006,542 × 407,092.08 - Step 4: Simplify right side
729,387.84x = 409,755,276,387.36 - Step 5: Solve for x
x = 409,755,276,387.36/729,387.84 - Step 6: Final answer
x = 561,779.69
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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.