Finding the Fourth Proportional to 553,584.44, 763,948.86 and 311,869.91
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Solution
The fourth proportional to 553,584.44, 763,948.86 and 311,869.91 is: 430,381.79
Step by Step Solution
- Step 1: Write the proportion equation
553,584.44 : 763,948.86 = 311,869.91 : x - Step 2: Convert to fraction form
553,584.44/763,948.86 = 311,869.91/x - Step 3: Cross multiply
553,584.44x = 763,948.86 × 311,869.91 - Step 4: Simplify right side
553,584.44x = 238,252,662,212.80 - Step 5: Solve for x
x = 238,252,662,212.80/553,584.44 - Step 6: Final answer
x = 430,381.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.