Finding the Fourth Proportional to 2,121,593.51, 2,926,476.90 and 1,294,289.07
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Solution
The fourth proportional to 2,121,593.51, 2,926,476.90 and 1,294,289.07 is: 1,785,312.34
Step by Step Solution
- Step 1: Write the proportion equation
2,121,593.51 : 2,926,476.90 = 1,294,289.07 : x - Step 2: Convert to fraction form
2,121,593.51/2,926,476.90 = 1,294,289.07/x - Step 3: Cross multiply
2,121,593.51x = 2,926,476.90 × 1,294,289.07 - Step 4: Simplify right side
2,121,593.51x = 3,787,707,065,277.48 - Step 5: Solve for x
x = 3,787,707,065,277.48/2,121,593.51 - Step 6: Final answer
x = 1,785,312.34
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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.