Finding the Fourth Proportional to 579,715.84, 799,639.68 and 418,807.36
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Solution
The fourth proportional to 579,715.84, 799,639.68 and 418,807.36 is: 577,688.17
Step by Step Solution
- Step 1: Write the proportion equation
579,715.84 : 799,639.68 = 418,807.36 : x - Step 2: Convert to fraction form
579,715.84/799,639.68 = 418,807.36/x - Step 3: Cross multiply
579,715.84x = 799,639.68 × 418,807.36 - Step 4: Simplify right side
579,715.84x = 334,894,983,332.05 - Step 5: Solve for x
x = 334,894,983,332.05/579,715.84 - Step 6: Final answer
x = 577,688.17
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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.