Finding the Fourth Proportional to 518,812.25, 715,971.84 and 292,457.75
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Solution
The fourth proportional to 518,812.25, 715,971.84 and 292,457.75 is: 403,597.86
Step by Step Solution
- Step 1: Write the proportion equation
518,812.25 : 715,971.84 = 292,457.75 : x - Step 2: Convert to fraction form
518,812.25/715,971.84 = 292,457.75/x - Step 3: Cross multiply
518,812.25x = 715,971.84 × 292,457.75 - Step 4: Simplify right side
518,812.25x = 209,391,513,389.76 - Step 5: Solve for x
x = 209,391,513,389.76/518,812.25 - Step 6: Final answer
x = 403,597.86
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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.