Finding the Fourth Proportional to 782,909.30, 1,174,363.95 and 221,948.66
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Solution
The fourth proportional to 782,909.30, 1,174,363.95 and 221,948.66 is: 332,922.99
Step by Step Solution
- Step 1: Write the proportion equation
782,909.30 : 1,174,363.95 = 221,948.66 : x - Step 2: Convert to fraction form
782,909.30/1,174,363.95 = 221,948.66/x - Step 3: Cross multiply
782,909.30x = 1,174,363.95 × 221,948.66 - Step 4: Simplify right side
782,909.30x = 260,648,505,054.81 - Step 5: Solve for x
x = 260,648,505,054.81/782,909.30 - Step 6: Final answer
x = 332,922.99
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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.