Finding the Fourth Proportional to 999,288.12, 1,379,467.92 and 637,198.68
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Solution
The fourth proportional to 999,288.12, 1,379,467.92 and 637,198.68 is: 879,621.32
Step by Step Solution
- Step 1: Write the proportion equation
999,288.12 : 1,379,467.92 = 637,198.68 : x - Step 2: Convert to fraction form
999,288.12/1,379,467.92 = 637,198.68/x - Step 3: Cross multiply
999,288.12x = 1,379,467.92 × 637,198.68 - Step 4: Simplify right side
999,288.12x = 878,995,137,726.35 - Step 5: Solve for x
x = 878,995,137,726.35/999,288.12 - Step 6: Final answer
x = 879,621.32
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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.