Finding the Fourth Proportional to 1,478,152.80, 2,217,812.40 and 579,441.60
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Solution
The fourth proportional to 1,478,152.80, 2,217,812.40 and 579,441.60 is: 869,391.02
Step by Step Solution
- Step 1: Write the proportion equation
1,478,152.80 : 2,217,812.40 = 579,441.60 : x - Step 2: Convert to fraction form
1,478,152.80/2,217,812.40 = 579,441.60/x - Step 3: Cross multiply
1,478,152.80x = 2,217,812.40 × 579,441.60 - Step 4: Simplify right side
1,478,152.80x = 1,285,092,765,555.84 - Step 5: Solve for x
x = 1,285,092,765,555.84/1,478,152.80 - Step 6: Final answer
x = 869,391.02
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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.