Finding the Fourth Proportional to 518,318.17, 715,034.51 and 303,325.13
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Solution
The fourth proportional to 518,318.17, 715,034.51 and 303,325.13 is: 418,445.56
Step by Step Solution
- Step 1: Write the proportion equation
518,318.17 : 715,034.51 = 303,325.13 : x - Step 2: Convert to fraction form
518,318.17/715,034.51 = 303,325.13/x - Step 3: Cross multiply
518,318.17x = 715,034.51 × 303,325.13 - Step 4: Simplify right side
518,318.17x = 216,887,935,700.24 - Step 5: Solve for x
x = 216,887,935,700.24/518,318.17 - Step 6: Final answer
x = 418,445.56
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1.5x scale
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.