Finding the Fourth Proportional to 625,401.12, 863,146.14 and 395,979.76
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Solution
The fourth proportional to 625,401.12, 863,146.14 and 395,979.76 is: 546,510.70
Step by Step Solution
- Step 1: Write the proportion equation
625,401.12 : 863,146.14 = 395,979.76 : x - Step 2: Convert to fraction form
625,401.12/863,146.14 = 395,979.76/x - Step 3: Cross multiply
625,401.12x = 863,146.14 × 395,979.76 - Step 4: Simplify right side
625,401.12x = 341,788,401,362.13 - Step 5: Solve for x
x = 341,788,401,362.13/625,401.12 - Step 6: Final answer
x = 546,510.70
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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.