Finding the Fourth Proportional to 866,128.20, 1,195,283.35 and 484,171.08
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Solution
The fourth proportional to 866,128.20, 1,195,283.35 and 484,171.08 is: 668,170.87
Step by Step Solution
- Step 1: Write the proportion equation
866,128.20 : 1,195,283.35 = 484,171.08 : x - Step 2: Convert to fraction form
866,128.20/1,195,283.35 = 484,171.08/x - Step 3: Cross multiply
866,128.20x = 1,195,283.35 × 484,171.08 - Step 4: Simplify right side
866,128.20x = 578,721,630,475.52 - Step 5: Solve for x
x = 578,721,630,475.52/866,128.20 - Step 6: Final answer
x = 668,170.87
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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.