Finding the Fourth Proportional to 762,671.40, 1,053,879.02 and 555,579.36
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Solution
The fourth proportional to 762,671.40, 1,053,879.02 and 555,579.36 is: 767,713.89
Step by Step Solution
- Step 1: Write the proportion equation
762,671.40 : 1,053,879.02 = 555,579.36 : x - Step 2: Convert to fraction form
762,671.40/1,053,879.02 = 555,579.36/x - Step 3: Cross multiply
762,671.40x = 1,053,879.02 × 555,579.36 - Step 4: Simplify right side
762,671.40x = 585,513,428,671.13 - Step 5: Solve for x
x = 585,513,428,671.13/762,671.40 - Step 6: Final answer
x = 767,713.89
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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.