Finding the Fourth Proportional to 784,784.08, 1,082,981.64 and 458,159.68
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Solution
The fourth proportional to 784,784.08, 1,082,981.64 and 458,159.68 is: 632,248.45
Step by Step Solution
- Step 1: Write the proportion equation
784,784.08 : 1,082,981.64 = 458,159.68 : x - Step 2: Convert to fraction form
784,784.08/1,082,981.64 = 458,159.68/x - Step 3: Cross multiply
784,784.08x = 1,082,981.64 × 458,159.68 - Step 4: Simplify right side
784,784.08x = 496,178,521,628.28 - Step 5: Solve for x
x = 496,178,521,628.28/784,784.08 - Step 6: Final answer
x = 632,248.45
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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.