Finding the Fourth Proportional to 1,580,708.40, 2,181,377.43 and 855,555.99
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Solution
The fourth proportional to 1,580,708.40, 2,181,377.43 and 855,555.99 is: 1,180,667.18
Step by Step Solution
- Step 1: Write the proportion equation
1,580,708.40 : 2,181,377.43 = 855,555.99 : x - Step 2: Convert to fraction form
1,580,708.40/2,181,377.43 = 855,555.99/x - Step 3: Cross multiply
1,580,708.40x = 2,181,377.43 × 855,555.99 - Step 4: Simplify right side
1,580,708.40x = 1,866,290,526,687.31 - Step 5: Solve for x
x = 1,866,290,526,687.31/1,580,708.40 - Step 6: Final answer
x = 1,180,667.18
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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.