Finding the Fourth Proportional to 1,020,977.20, 1,529,910.60 and 862,346.80
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Solution
The fourth proportional to 1,020,977.20, 1,529,910.60 and 862,346.80 is: 1,292,206.63
Step by Step Solution
- Step 1: Write the proportion equation
1,020,977.20 : 1,529,910.60 = 862,346.80 : x - Step 2: Convert to fraction form
1,020,977.20/1,529,910.60 = 862,346.80/x - Step 3: Cross multiply
1,020,977.20x = 1,529,910.60 × 862,346.80 - Step 4: Simplify right side
1,020,977.20x = 1,319,313,510,196.08 - Step 5: Solve for x
x = 1,319,313,510,196.08/1,020,977.20 - Step 6: Final answer
x = 1,292,206.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.