Finding the Fourth Proportional to 785,419.28, 1,083,966.58 and 475,492.70
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Solution
The fourth proportional to 785,419.28, 1,083,966.58 and 475,492.70 is: 656,233.19
Step by Step Solution
- Step 1: Write the proportion equation
785,419.28 : 1,083,966.58 = 475,492.70 : x - Step 2: Convert to fraction form
785,419.28/1,083,966.58 = 475,492.70/x - Step 3: Cross multiply
785,419.28x = 1,083,966.58 × 475,492.70 - Step 4: Simplify right side
785,419.28x = 515,418,195,833.97 - Step 5: Solve for x
x = 515,418,195,833.97/785,419.28 - Step 6: Final answer
x = 656,233.19
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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.