Finding the Fourth Proportional to 836,921.49, 1,154,927.34 and 474,378.72
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Solution
The fourth proportional to 836,921.49, 1,154,927.34 and 474,378.72 is: 654,628.85
Step by Step Solution
- Step 1: Write the proportion equation
836,921.49 : 1,154,927.34 = 474,378.72 : x - Step 2: Convert to fraction form
836,921.49/1,154,927.34 = 474,378.72/x - Step 3: Cross multiply
836,921.49x = 1,154,927.34 × 474,378.72 - Step 4: Simplify right side
836,921.49x = 547,872,953,242.21 - Step 5: Solve for x
x = 547,872,953,242.21/836,921.49 - Step 6: Final answer
x = 654,628.85
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1.5x scale
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.