Finding the Fourth Proportional to 653,247.28, 979,862.20 and 316,318.08
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Solution
The fourth proportional to 653,247.28, 979,862.20 and 316,318.08 is: 474,472.90
Step by Step Solution
- Step 1: Write the proportion equation
653,247.28 : 979,862.20 = 316,318.08 : x - Step 2: Convert to fraction form
653,247.28/979,862.20 = 316,318.08/x - Step 3: Cross multiply
653,247.28x = 979,862.20 × 316,318.08 - Step 4: Simplify right side
653,247.28x = 309,948,129,768.58 - Step 5: Solve for x
x = 309,948,129,768.58/653,247.28 - Step 6: Final answer
x = 474,472.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.