Finding the Fourth Proportional to 819,806.79, 1,221,560.18 and 730,373.07
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Solution
The fourth proportional to 819,806.79, 1,221,560.18 and 730,373.07 is: 1,088,298.70
Step by Step Solution
- Step 1: Write the proportion equation
819,806.79 : 1,221,560.18 = 730,373.07 : x - Step 2: Convert to fraction form
819,806.79/1,221,560.18 = 730,373.07/x - Step 3: Cross multiply
819,806.79x = 1,221,560.18 × 730,373.07 - Step 4: Simplify right side
819,806.79x = 892,194,660,682.29 - Step 5: Solve for x
x = 892,194,660,682.29/819,806.79 - Step 6: Final answer
x = 1,088,298.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.