Finding the Fourth Proportional to 1,092,830.70, 1,639,246.05 and 620,438.70
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Solution
The fourth proportional to 1,092,830.70, 1,639,246.05 and 620,438.70 is: 930,658.05
Step by Step Solution
- Step 1: Write the proportion equation
1,092,830.70 : 1,639,246.05 = 620,438.70 : x - Step 2: Convert to fraction form
1,092,830.70/1,639,246.05 = 620,438.70/x - Step 3: Cross multiply
1,092,830.70x = 1,639,246.05 × 620,438.70 - Step 4: Simplify right side
1,092,830.70x = 1,017,051,688,242.14 - Step 5: Solve for x
x = 1,017,051,688,242.14/1,092,830.70 - Step 6: Final answer
x = 930,658.05
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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.