Finding the Fourth Proportional to 812,507.49, 1,121,258.53 and 468,341.14
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Solution
The fourth proportional to 812,507.49, 1,121,258.53 and 468,341.14 is: 646,309.73
Step by Step Solution
- Step 1: Write the proportion equation
812,507.49 : 1,121,258.53 = 468,341.14 : x - Step 2: Convert to fraction form
812,507.49/1,121,258.53 = 468,341.14/x - Step 3: Cross multiply
812,507.49x = 1,121,258.53 × 468,341.14 - Step 4: Simplify right side
812,507.49x = 525,131,498,059.56 - Step 5: Solve for x
x = 525,131,498,059.56/812,507.49 - Step 6: Final answer
x = 646,309.73
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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.