Finding the Fourth Proportional to 420,888.89, 631,426.62 and 121,346.09
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Solution
The fourth proportional to 420,888.89, 631,426.62 and 121,346.09 is: 182,046.03
Step by Step Solution
- Step 1: Write the proportion equation
420,888.89 : 631,426.62 = 121,346.09 : x - Step 2: Convert to fraction form
420,888.89/631,426.62 = 121,346.09/x - Step 3: Cross multiply
420,888.89x = 631,426.62 × 121,346.09 - Step 4: Simplify right side
420,888.89x = 76,621,153,037.48 - Step 5: Solve for x
x = 76,621,153,037.48/420,888.89 - Step 6: Final answer
x = 182,046.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.