Finding the Fourth Proportional to 971,784, 1,340,997.12 and 558,334.08
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Solution
The fourth proportional to 971,784, 1,340,997.12 and 558,334.08 is: 770,463.80
Step by Step Solution
- Step 1: Write the proportion equation
971,784 : 1,340,997.12 = 558,334.08 : x - Step 2: Convert to fraction form
971,784/1,340,997.12 = 558,334.08/x - Step 3: Cross multiply
971,784x = 1,340,997.12 × 558,334.08 - Step 4: Simplify right side
971,784x = 748,724,393,277.85 - Step 5: Solve for x
x = 748,724,393,277.85/971,784 - Step 6: Final answer
x = 770,463.80
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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.