Finding the Fourth Proportional to 724,390.74, 999,704.43 and 418,479.98
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Solution
The fourth proportional to 724,390.74, 999,704.43 and 418,479.98 is: 577,528.48
Step by Step Solution
- Step 1: Write the proportion equation
724,390.74 : 999,704.43 = 418,479.98 : x - Step 2: Convert to fraction form
724,390.74/999,704.43 = 418,479.98/x - Step 3: Cross multiply
724,390.74x = 999,704.43 × 418,479.98 - Step 4: Simplify right side
724,390.74x = 418,356,284,873.79 - Step 5: Solve for x
x = 418,356,284,873.79/724,390.74 - Step 6: Final answer
x = 577,528.48
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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.