Finding the Fourth Proportional to 3,181,955.04, 4,391,197.55 and 1,805,356.70
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Solution
The fourth proportional to 3,181,955.04, 4,391,197.55 and 1,805,356.70 is: 2,491,448.74
Step by Step Solution
- Step 1: Write the proportion equation
3,181,955.04 : 4,391,197.55 = 1,805,356.70 : x - Step 2: Convert to fraction form
3,181,955.04/4,391,197.55 = 1,805,356.70/x - Step 3: Cross multiply
3,181,955.04x = 4,391,197.55 × 1,805,356.70 - Step 4: Simplify right side
3,181,955.04x = 7,927,677,886,933.31 - Step 5: Solve for x
x = 7,927,677,886,933.31/3,181,955.04 - Step 6: Final answer
x = 2,491,448.74
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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.