Finding the Fourth Proportional to 492,946.11, 679,649.25 and 411,391.68
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Solution
The fourth proportional to 492,946.11, 679,649.25 and 411,391.68 is: 567,206.11
Step by Step Solution
- Step 1: Write the proportion equation
492,946.11 : 679,649.25 = 411,391.68 : x - Step 2: Convert to fraction form
492,946.11/679,649.25 = 411,391.68/x - Step 3: Cross multiply
492,946.11x = 679,649.25 × 411,391.68 - Step 4: Simplify right side
492,946.11x = 279,602,046,768.24 - Step 5: Solve for x
x = 279,602,046,768.24/492,946.11 - Step 6: Final answer
x = 567,206.11
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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.