Finding the Fourth Proportional to 1,793,489.21, 2,475,898.71 and 1,242,622.63
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Solution
The fourth proportional to 1,793,489.21, 2,475,898.71 and 1,242,622.63 is: 1,715,431.43
Step by Step Solution
- Step 1: Write the proportion equation
1,793,489.21 : 2,475,898.71 = 1,242,622.63 : x - Step 2: Convert to fraction form
1,793,489.21/2,475,898.71 = 1,242,622.63/x - Step 3: Cross multiply
1,793,489.21x = 2,475,898.71 × 1,242,622.63 - Step 4: Simplify right side
1,793,489.21x = 3,076,607,765,068.85 - Step 5: Solve for x
x = 3,076,607,765,068.85/1,793,489.21 - Step 6: Final answer
x = 1,715,431.43
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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.