Finding the Fourth Proportional to 478,488.99, 660,342.35 and 274,538.02
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Solution
The fourth proportional to 478,488.99, 660,342.35 and 274,538.02 is: 378,878.27
Step by Step Solution
- Step 1: Write the proportion equation
478,488.99 : 660,342.35 = 274,538.02 : x - Step 2: Convert to fraction form
478,488.99/660,342.35 = 274,538.02/x - Step 3: Cross multiply
478,488.99x = 660,342.35 × 274,538.02 - Step 4: Simplify right side
478,488.99x = 181,289,081,291.15 - Step 5: Solve for x
x = 181,289,081,291.15/478,488.99 - Step 6: Final answer
x = 378,878.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.