Finding the Fourth Proportional to 386,881.15, 579,829.65 and 344,562.70
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Solution
The fourth proportional to 386,881.15, 579,829.65 and 344,562.70 is: 516,405.80
Step by Step Solution
- Step 1: Write the proportion equation
386,881.15 : 579,829.65 = 344,562.70 : x - Step 2: Convert to fraction form
386,881.15/579,829.65 = 344,562.70/x - Step 3: Cross multiply
386,881.15x = 579,829.65 × 344,562.70 - Step 4: Simplify right side
386,881.15x = 199,787,669,744.06 - Step 5: Solve for x
x = 199,787,669,744.06/386,881.15 - Step 6: Final answer
x = 516,405.80
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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.