Finding the Fourth Proportional to 465,830.19, 643,164.35 and 356,742.05
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Solution
The fourth proportional to 465,830.19, 643,164.35 and 356,742.05 is: 492,548.08
Step by Step Solution
- Step 1: Write the proportion equation
465,830.19 : 643,164.35 = 356,742.05 : x - Step 2: Convert to fraction form
465,830.19/643,164.35 = 356,742.05/x - Step 3: Cross multiply
465,830.19x = 643,164.35 × 356,742.05 - Step 4: Simplify right side
465,830.19x = 229,443,763,706.39 - Step 5: Solve for x
x = 229,443,763,706.39/465,830.19 - Step 6: Final answer
x = 492,548.08
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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.