Finding the Fourth Proportional to 621,395.96, 931,503.44 and 396,124.02
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Solution
The fourth proportional to 621,395.96, 931,503.44 and 396,124.02 is: 593,809.61
Step by Step Solution
- Step 1: Write the proportion equation
621,395.96 : 931,503.44 = 396,124.02 : x - Step 2: Convert to fraction form
621,395.96/931,503.44 = 396,124.02/x - Step 3: Cross multiply
621,395.96x = 931,503.44 × 396,124.02 - Step 4: Simplify right side
621,395.96x = 368,990,888,286.94 - Step 5: Solve for x
x = 368,990,888,286.94/621,395.96 - Step 6: Final answer
x = 593,809.61
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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.