Finding the Fourth Proportional to 1,671,122.20, 2,506,683.30 and 1,489,163.80
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Solution
The fourth proportional to 1,671,122.20, 2,506,683.30 and 1,489,163.80 is: 2,233,745.70
Step by Step Solution
- Step 1: Write the proportion equation
1,671,122.20 : 2,506,683.30 = 1,489,163.80 : x - Step 2: Convert to fraction form
1,671,122.20/2,506,683.30 = 1,489,163.80/x - Step 3: Cross multiply
1,671,122.20x = 2,506,683.30 × 1,489,163.80 - Step 4: Simplify right side
1,671,122.20x = 3,732,862,028,424.54 - Step 5: Solve for x
x = 3,732,862,028,424.54/1,671,122.20 - Step 6: Final answer
x = 2,233,745.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.