Finding the Fourth Proportional to 3,187,147.10, 4,781,655.18 and 1,028,128.95
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Solution
The fourth proportional to 3,187,147.10, 4,781,655.18 and 1,028,128.95 is: 1,542,494.89
Step by Step Solution
- Step 1: Write the proportion equation
3,187,147.10 : 4,781,655.18 = 1,028,128.95 : x - Step 2: Convert to fraction form
3,187,147.10/4,781,655.18 = 1,028,128.95/x - Step 3: Cross multiply
3,187,147.10x = 4,781,655.18 × 1,028,128.95 - Step 4: Simplify right side
3,187,147.10x = 4,916,158,119,475.46 - Step 5: Solve for x
x = 4,916,158,119,475.46/3,187,147.10 - Step 6: Final answer
x = 1,542,494.89
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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.