Finding the Fourth Proportional to 516,459.05, 774,733.20 and 142,482.05
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Solution
The fourth proportional to 516,459.05, 774,733.20 and 142,482.05 is: 213,735.39
Step by Step Solution
- Step 1: Write the proportion equation
516,459.05 : 774,733.20 = 142,482.05 : x - Step 2: Convert to fraction form
516,459.05/774,733.20 = 142,482.05/x - Step 3: Cross multiply
516,459.05x = 774,733.20 × 142,482.05 - Step 4: Simplify right side
516,459.05x = 110,385,574,539.06 - Step 5: Solve for x
x = 110,385,574,539.06/516,459.05 - Step 6: Final answer
x = 213,735.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.