Finding the Fourth Proportional to 679,456.84, 1,019,307.84 and 279,879.52
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Solution
The fourth proportional to 679,456.84, 1,019,307.84 and 279,879.52 is: 419,869.77
Step by Step Solution
- Step 1: Write the proportion equation
679,456.84 : 1,019,307.84 = 279,879.52 : x - Step 2: Convert to fraction form
679,456.84/1,019,307.84 = 279,879.52/x - Step 3: Cross multiply
679,456.84x = 1,019,307.84 × 279,879.52 - Step 4: Simplify right side
679,456.84x = 285,283,388,991.44 - Step 5: Solve for x
x = 285,283,388,991.44/679,456.84 - Step 6: Final answer
x = 419,869.77
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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.