Finding the Fourth Proportional to 2,987,420.24, 4,481,133.06 and 1,280,455.81
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Solution
The fourth proportional to 2,987,420.24, 4,481,133.06 and 1,280,455.81 is: 1,920,684.87
Step by Step Solution
- Step 1: Write the proportion equation
2,987,420.24 : 4,481,133.06 = 1,280,455.81 : x - Step 2: Convert to fraction form
2,987,420.24/4,481,133.06 = 1,280,455.81/x - Step 3: Cross multiply
2,987,420.24x = 4,481,133.06 × 1,280,455.81 - Step 4: Simplify right side
2,987,420.24x = 5,737,892,862,060.08 - Step 5: Solve for x
x = 5,737,892,862,060.08/2,987,420.24 - Step 6: Final answer
x = 1,920,684.87
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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.