Finding the Fourth Proportional to 897,853.81, 1,239,064.59 and 489,981.99
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Solution
The fourth proportional to 897,853.81, 1,239,064.59 and 489,981.99 is: 676,189.52
Step by Step Solution
- Step 1: Write the proportion equation
897,853.81 : 1,239,064.59 = 489,981.99 : x - Step 2: Convert to fraction form
897,853.81/1,239,064.59 = 489,981.99/x - Step 3: Cross multiply
897,853.81x = 1,239,064.59 × 489,981.99 - Step 4: Simplify right side
897,853.81x = 607,119,333,060.92 - Step 5: Solve for x
x = 607,119,333,060.92/897,853.81 - Step 6: Final answer
x = 676,189.52
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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.