Finding the Fourth Proportional to 2,129,683.64, 2,938,941.14 and 1,162,810.94
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Solution
The fourth proportional to 2,129,683.64, 2,938,941.14 and 1,162,810.94 is: 1,604,666.92
Step by Step Solution
- Step 1: Write the proportion equation
2,129,683.64 : 2,938,941.14 = 1,162,810.94 : x - Step 2: Convert to fraction form
2,129,683.64/2,938,941.14 = 1,162,810.94/x - Step 3: Cross multiply
2,129,683.64x = 2,938,941.14 × 1,162,810.94 - Step 4: Simplify right side
2,129,683.64x = 3,417,432,889,099.31 - Step 5: Solve for x
x = 3,417,432,889,099.31/2,129,683.64 - Step 6: Final answer
x = 1,604,666.92
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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.