Finding the Fourth Proportional to 885,545.84, 1,221,836.42 and 498,285.75
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Solution
The fourth proportional to 885,545.84, 1,221,836.42 and 498,285.75 is: 687,512.32
Step by Step Solution
- Step 1: Write the proportion equation
885,545.84 : 1,221,836.42 = 498,285.75 : x - Step 2: Convert to fraction form
885,545.84/1,221,836.42 = 498,285.75/x - Step 3: Cross multiply
885,545.84x = 1,221,836.42 × 498,285.75 - Step 4: Simplify right side
885,545.84x = 608,823,678,162.73 - Step 5: Solve for x
x = 608,823,678,162.73/885,545.84 - Step 6: Final answer
x = 687,512.32
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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.