Finding the Fourth Proportional to 450,531.12, 620,713.36 and 369,830.84
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Solution
The fourth proportional to 450,531.12, 620,713.36 and 369,830.84 is: 509,529.60
Step by Step Solution
- Step 1: Write the proportion equation
450,531.12 : 620,713.36 = 369,830.84 : x - Step 2: Convert to fraction form
450,531.12/620,713.36 = 369,830.84/x - Step 3: Cross multiply
450,531.12x = 620,713.36 × 369,830.84 - Step 4: Simplify right side
450,531.12x = 229,558,943,328.02 - Step 5: Solve for x
x = 229,558,943,328.02/450,531.12 - Step 6: Final answer
x = 509,529.60
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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.