Finding the Fourth Proportional to 679,448.84, 1,019,295.84 and 279,871.52
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Solution
The fourth proportional to 679,448.84, 1,019,295.84 and 279,871.52 is: 419,857.77
Step by Step Solution
- Step 1: Write the proportion equation
679,448.84 : 1,019,295.84 = 279,871.52 : x - Step 2: Convert to fraction form
679,448.84/1,019,295.84 = 279,871.52/x - Step 3: Cross multiply
679,448.84x = 1,019,295.84 × 279,871.52 - Step 4: Simplify right side
679,448.84x = 285,271,876,070.48 - Step 5: Solve for x
x = 285,271,876,070.48/679,448.84 - Step 6: Final answer
x = 419,857.77
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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.