Finding the Fourth Proportional to 990,902.28, 1,368,011.70 and 652,354.68
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Solution
The fourth proportional to 990,902.28, 1,368,011.70 and 652,354.68 is: 900,622.45
Step by Step Solution
- Step 1: Write the proportion equation
990,902.28 : 1,368,011.70 = 652,354.68 : x - Step 2: Convert to fraction form
990,902.28/1,368,011.70 = 652,354.68/x - Step 3: Cross multiply
990,902.28x = 1,368,011.70 × 652,354.68 - Step 4: Simplify right side
990,902.28x = 892,428,834,789.76 - Step 5: Solve for x
x = 892,428,834,789.76/990,902.28 - Step 6: Final answer
x = 900,622.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.