Finding the Fourth Proportional to 1,282,358.16, 1,769,706.36 and 709,388.46
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Solution
The fourth proportional to 1,282,358.16, 1,769,706.36 and 709,388.46 is: 978,984.90
Step by Step Solution
- Step 1: Write the proportion equation
1,282,358.16 : 1,769,706.36 = 709,388.46 : x - Step 2: Convert to fraction form
1,282,358.16/1,769,706.36 = 709,388.46/x - Step 3: Cross multiply
1,282,358.16x = 1,769,706.36 × 709,388.46 - Step 4: Simplify right side
1,282,358.16x = 1,255,409,269,372.61 - Step 5: Solve for x
x = 1,255,409,269,372.61/1,282,358.16 - Step 6: Final answer
x = 978,984.90
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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.