Finding the Fourth Proportional to 815,065.68, 1,221,008.09 and 533,730
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Solution
The fourth proportional to 815,065.68, 1,221,008.09 and 533,730 is: 799,553.53
Step by Step Solution
- Step 1: Write the proportion equation
815,065.68 : 1,221,008.09 = 533,730 : x - Step 2: Convert to fraction form
815,065.68/1,221,008.09 = 533,730/x - Step 3: Cross multiply
815,065.68x = 1,221,008.09 × 533,730 - Step 4: Simplify right side
815,065.68x = 651,688,645,207.05 - Step 5: Solve for x
x = 651,688,645,207.05/815,065.68 - Step 6: Final answer
x = 799,553.53
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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.