Finding the Fourth Proportional to 1,239,748.73, 1,859,405.30 and 340,973.74
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Solution
The fourth proportional to 1,239,748.73, 1,859,405.30 and 340,973.74 is: 511,400.71
Step by Step Solution
- Step 1: Write the proportion equation
1,239,748.73 : 1,859,405.30 = 340,973.74 : x - Step 2: Convert to fraction form
1,239,748.73/1,859,405.30 = 340,973.74/x - Step 3: Cross multiply
1,239,748.73x = 1,859,405.30 × 340,973.74 - Step 4: Simplify right side
1,239,748.73x = 634,008,379,316.82 - Step 5: Solve for x
x = 634,008,379,316.82/1,239,748.73 - Step 6: Final answer
x = 511,400.71
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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.