Finding the Fourth Proportional to 513,957.30, 709,254.93 and 287,604.66
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Solution
The fourth proportional to 513,957.30, 709,254.93 and 287,604.66 is: 396,890.99
Step by Step Solution
- Step 1: Write the proportion equation
513,957.30 : 709,254.93 = 287,604.66 : x - Step 2: Convert to fraction form
513,957.30/709,254.93 = 287,604.66/x - Step 3: Cross multiply
513,957.30x = 709,254.93 × 287,604.66 - Step 4: Simplify right side
513,957.30x = 203,985,022,995.97 - Step 5: Solve for x
x = 203,985,022,995.97/513,957.30 - Step 6: Final answer
x = 396,890.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.