Finding the Fourth Proportional to 660,647.44, 990,621.24 and 261,272.08
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Solution
The fourth proportional to 660,647.44, 990,621.24 and 261,272.08 is: 391,769.73
Step by Step Solution
- Step 1: Write the proportion equation
660,647.44 : 990,621.24 = 261,272.08 : x - Step 2: Convert to fraction form
660,647.44/990,621.24 = 261,272.08/x - Step 3: Cross multiply
660,647.44x = 990,621.24 × 261,272.08 - Step 4: Simplify right side
660,647.44x = 258,821,671,866.98 - Step 5: Solve for x
x = 258,821,671,866.98/660,647.44 - Step 6: Final answer
x = 391,769.73
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.