Finding the Fourth Proportional to 630,154.97, 869,464.35 and 358,201.52
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Solution
The fourth proportional to 630,154.97, 869,464.35 and 358,201.52 is: 494,233.11
Step by Step Solution
- Step 1: Write the proportion equation
630,154.97 : 869,464.35 = 358,201.52 : x - Step 2: Convert to fraction form
630,154.97/869,464.35 = 358,201.52/x - Step 3: Cross multiply
630,154.97x = 869,464.35 × 358,201.52 - Step 4: Simplify right side
630,154.97x = 311,443,451,755.81 - Step 5: Solve for x
x = 311,443,451,755.81/630,154.97 - Step 6: Final answer
x = 494,233.11
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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.