Finding the Fourth Proportional to 1,405,487.76, 1,939,583.64 and 760,918.80
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Solution
The fourth proportional to 1,405,487.76, 1,939,583.64 and 760,918.80 is: 1,050,073.65
Step by Step Solution
- Step 1: Write the proportion equation
1,405,487.76 : 1,939,583.64 = 760,918.80 : x - Step 2: Convert to fraction form
1,405,487.76/1,939,583.64 = 760,918.80/x - Step 3: Cross multiply
1,405,487.76x = 1,939,583.64 × 760,918.80 - Step 4: Simplify right side
1,405,487.76x = 1,475,865,655,848.43 - Step 5: Solve for x
x = 1,475,865,655,848.43/1,405,487.76 - Step 6: Final answer
x = 1,050,073.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.