Finding the Fourth Proportional to 2,130,726.57, 2,939,673.29 and 1,212,725.80
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Solution
The fourth proportional to 2,130,726.57, 2,939,673.29 and 1,212,725.80 is: 1,673,146.46
Step by Step Solution
- Step 1: Write the proportion equation
2,130,726.57 : 2,939,673.29 = 1,212,725.80 : x - Step 2: Convert to fraction form
2,130,726.57/2,939,673.29 = 1,212,725.80/x - Step 3: Cross multiply
2,130,726.57x = 2,939,673.29 × 1,212,725.80 - Step 4: Simplify right side
2,130,726.57x = 3,565,017,626,839.97 - Step 5: Solve for x
x = 3,565,017,626,839.97/2,130,726.57 - Step 6: Final answer
x = 1,673,146.46
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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.