Finding the Fourth Proportional to 905,421.11, 1,356,064.90 and 432,438.62
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Solution
The fourth proportional to 905,421.11, 1,356,064.90 and 432,438.62 is: 647,670.82
Step by Step Solution
- Step 1: Write the proportion equation
905,421.11 : 1,356,064.90 = 432,438.62 : x - Step 2: Convert to fraction form
905,421.11/1,356,064.90 = 432,438.62/x - Step 3: Cross multiply
905,421.11x = 1,356,064.90 × 432,438.62 - Step 4: Simplify right side
905,421.11x = 586,414,826,125.02 - Step 5: Solve for x
x = 586,414,826,125.02/905,421.11 - Step 6: Final answer
x = 647,670.82
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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.