Finding the Fourth Proportional to 1,542,207.35, 2,128,312.67 and 853,879.23
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Solution
The fourth proportional to 1,542,207.35, 2,128,312.67 and 853,879.23 is: 1,178,390.17
Step by Step Solution
- Step 1: Write the proportion equation
1,542,207.35 : 2,128,312.67 = 853,879.23 : x - Step 2: Convert to fraction form
1,542,207.35/2,128,312.67 = 853,879.23/x - Step 3: Cross multiply
1,542,207.35x = 2,128,312.67 × 853,879.23 - Step 4: Simplify right side
1,542,207.35x = 1,817,321,979,589.45 - Step 5: Solve for x
x = 1,817,321,979,589.45/1,542,207.35 - Step 6: Final answer
x = 1,178,390.17
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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.