Finding the Fourth Proportional to 724,387.08, 999,635.78 and 397,698.49
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Solution
The fourth proportional to 724,387.08, 999,635.78 and 397,698.49 is: 548,813.82
Step by Step Solution
- Step 1: Write the proportion equation
724,387.08 : 999,635.78 = 397,698.49 : x - Step 2: Convert to fraction form
724,387.08/999,635.78 = 397,698.49/x - Step 3: Cross multiply
724,387.08x = 999,635.78 × 397,698.49 - Step 4: Simplify right side
724,387.08x = 397,553,642,499.76 - Step 5: Solve for x
x = 397,553,642,499.76/724,387.08 - Step 6: Final answer
x = 548,813.82
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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.