Finding the Fourth Proportional to 1,225,416.18, 1,690,824.06 and 716,020.14
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Solution
The fourth proportional to 1,225,416.18, 1,690,824.06 and 716,020.14 is: 987,961.56
Step by Step Solution
- Step 1: Write the proportion equation
1,225,416.18 : 1,690,824.06 = 716,020.14 : x - Step 2: Convert to fraction form
1,225,416.18/1,690,824.06 = 716,020.14/x - Step 3: Cross multiply
1,225,416.18x = 1,690,824.06 × 716,020.14 - Step 4: Simplify right side
1,225,416.18x = 1,210,664,080,156.57 - Step 5: Solve for x
x = 1,210,664,080,156.57/1,225,416.18 - Step 6: Final answer
x = 987,961.56
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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.