Finding the Fourth Proportional to 1,282,740.42, 1,769,900.61 and 766,416.75
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Solution
The fourth proportional to 1,282,740.42, 1,769,900.61 and 766,416.75 is: 1,057,487.12
Step by Step Solution
- Step 1: Write the proportion equation
1,282,740.42 : 1,769,900.61 = 766,416.75 : x - Step 2: Convert to fraction form
1,282,740.42/1,769,900.61 = 766,416.75/x - Step 3: Cross multiply
1,282,740.42x = 1,769,900.61 × 766,416.75 - Step 4: Simplify right side
1,282,740.42x = 1,356,481,473,339.22 - Step 5: Solve for x
x = 1,356,481,473,339.22/1,282,740.42 - Step 6: Final answer
x = 1,057,487.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.