Finding the Fourth Proportional to 2,997,438.81, 4,136,462.61 and 1,620,779.24
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Solution
The fourth proportional to 2,997,438.81, 4,136,462.61 and 1,620,779.24 is: 2,236,673.75
Step by Step Solution
- Step 1: Write the proportion equation
2,997,438.81 : 4,136,462.61 = 1,620,779.24 : x - Step 2: Convert to fraction form
2,997,438.81/4,136,462.61 = 1,620,779.24/x - Step 3: Cross multiply
2,997,438.81x = 4,136,462.61 × 1,620,779.24 - Step 4: Simplify right side
2,997,438.81x = 6,704,292,704,641.90 - Step 5: Solve for x
x = 6,704,292,704,641.90/2,997,438.81 - Step 6: Final answer
x = 2,236,673.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.