Finding the Fourth Proportional to 1,558,620.80, 2,142,639.98 and 1,340,024.18
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Solution
The fourth proportional to 1,558,620.80, 2,142,639.98 and 1,340,024.18 is: 1,842,134.65
Step by Step Solution
- Step 1: Write the proportion equation
1,558,620.80 : 2,142,639.98 = 1,340,024.18 : x - Step 2: Convert to fraction form
1,558,620.80/2,142,639.98 = 1,340,024.18/x - Step 3: Cross multiply
1,558,620.80x = 2,142,639.98 × 1,340,024.18 - Step 4: Simplify right side
1,558,620.80x = 2,871,189,382,234.72 - Step 5: Solve for x
x = 2,871,189,382,234.72/1,558,620.80 - Step 6: Final answer
x = 1,842,134.65
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.