Finding the Fourth Proportional to 1,631,215.80, 2,441,985.30 and 1,212,348.60
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Solution
The fourth proportional to 1,631,215.80, 2,441,985.30 and 1,212,348.60 is: 1,814,926.92
Step by Step Solution
- Step 1: Write the proportion equation
1,631,215.80 : 2,441,985.30 = 1,212,348.60 : x - Step 2: Convert to fraction form
1,631,215.80/2,441,985.30 = 1,212,348.60/x - Step 3: Cross multiply
1,631,215.80x = 2,441,985.30 × 1,212,348.60 - Step 4: Simplify right side
1,631,215.80x = 2,960,537,459,675.58 - Step 5: Solve for x
x = 2,960,537,459,675.58/1,631,215.80 - Step 6: Final answer
x = 1,814,926.92
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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.