Finding the Fourth Proportional to 411,822.40, 617,095.68 and 285,707.68
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Solution
The fourth proportional to 411,822.40, 617,095.68 and 285,707.68 is: 428,118.95
Step by Step Solution
- Step 1: Write the proportion equation
411,822.40 : 617,095.68 = 285,707.68 : x - Step 2: Convert to fraction form
411,822.40/617,095.68 = 285,707.68/x - Step 3: Cross multiply
411,822.40x = 617,095.68 × 285,707.68 - Step 4: Simplify right side
411,822.40x = 176,308,975,070.82 - Step 5: Solve for x
x = 176,308,975,070.82/411,822.40 - Step 6: Final answer
x = 428,118.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.