Finding the Fourth Proportional to 887,156.20, 1,330,442.70 and 326,117.80
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Solution
The fourth proportional to 887,156.20, 1,330,442.70 and 326,117.80 is: 489,069.51
Step by Step Solution
- Step 1: Write the proportion equation
887,156.20 : 1,330,442.70 = 326,117.80 : x - Step 2: Convert to fraction form
887,156.20/1,330,442.70 = 326,117.80/x - Step 3: Cross multiply
887,156.20x = 1,330,442.70 × 326,117.80 - Step 4: Simplify right side
887,156.20x = 433,881,046,350.06 - Step 5: Solve for x
x = 433,881,046,350.06/887,156.20 - Step 6: Final answer
x = 489,069.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.