Finding the Fourth Proportional to 718,873.95, 992,045.99 and 396,584.06
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Solution
The fourth proportional to 718,873.95, 992,045.99 and 396,584.06 is: 547,285.97
Step by Step Solution
- Step 1: Write the proportion equation
718,873.95 : 992,045.99 = 396,584.06 : x - Step 2: Convert to fraction form
718,873.95/992,045.99 = 396,584.06/x - Step 3: Cross multiply
718,873.95x = 992,045.99 × 396,584.06 - Step 4: Simplify right side
718,873.95x = 393,429,626,420.92 - Step 5: Solve for x
x = 393,429,626,420.92/718,873.95 - Step 6: Final answer
x = 547,285.97
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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.