Finding the Fourth Proportional to 998,557.40, 1,497,836.10 and 620,643.80
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Solution
The fourth proportional to 998,557.40, 1,497,836.10 and 620,643.80 is: 930,965.70
Step by Step Solution
- Step 1: Write the proportion equation
998,557.40 : 1,497,836.10 = 620,643.80 : x - Step 2: Convert to fraction form
998,557.40/1,497,836.10 = 620,643.80/x - Step 3: Cross multiply
998,557.40x = 1,497,836.10 × 620,643.80 - Step 4: Simplify right side
998,557.40x = 929,622,688,881.18 - Step 5: Solve for x
x = 929,622,688,881.18/998,557.40 - Step 6: Final answer
x = 930,965.70
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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.