Finding the Fourth Proportional to 1,938,478.55, 2,675,056.05 and 1,213,725.87
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Solution
The fourth proportional to 1,938,478.55, 2,675,056.05 and 1,213,725.87 is: 1,674,913.94
Step by Step Solution
- Step 1: Write the proportion equation
1,938,478.55 : 2,675,056.05 = 1,213,725.87 : x - Step 2: Convert to fraction form
1,938,478.55/2,675,056.05 = 1,213,725.87/x - Step 3: Cross multiply
1,938,478.55x = 2,675,056.05 × 1,213,725.87 - Step 4: Simplify right side
1,938,478.55x = 3,246,784,731,585.01 - Step 5: Solve for x
x = 3,246,784,731,585.01/1,938,478.55 - Step 6: Final answer
x = 1,674,913.94
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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.