Finding the Fourth Proportional to 621,807.70, 932,711.55 and 201,385.30
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Solution
The fourth proportional to 621,807.70, 932,711.55 and 201,385.30 is: 302,077.95
Step by Step Solution
- Step 1: Write the proportion equation
621,807.70 : 932,711.55 = 201,385.30 : x - Step 2: Convert to fraction form
621,807.70/932,711.55 = 201,385.30/x - Step 3: Cross multiply
621,807.70x = 932,711.55 × 201,385.30 - Step 4: Simplify right side
621,807.70x = 187,834,395,310.22 - Step 5: Solve for x
x = 187,834,395,310.22/621,807.70 - Step 6: Final answer
x = 302,077.95
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.