Finding the Fourth Proportional to 704,571.68, 972,278.16 and 402,785.12
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Solution
The fourth proportional to 704,571.68, 972,278.16 and 402,785.12 is: 555,825.88
Step by Step Solution
- Step 1: Write the proportion equation
704,571.68 : 972,278.16 = 402,785.12 : x - Step 2: Convert to fraction form
704,571.68/972,278.16 = 402,785.12/x - Step 3: Cross multiply
704,571.68x = 972,278.16 × 402,785.12 - Step 4: Simplify right side
704,571.68x = 391,619,175,348.98 - Step 5: Solve for x
x = 391,619,175,348.98/704,571.68 - Step 6: Final answer
x = 555,825.88
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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.