Finding the Fourth Proportional to 2,130,027.71, 2,939,435.68 and 1,259,176.27
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Solution
The fourth proportional to 2,130,027.71, 2,939,435.68 and 1,259,176.27 is: 1,737,661.74
Step by Step Solution
- Step 1: Write the proportion equation
2,130,027.71 : 2,939,435.68 = 1,259,176.27 : x - Step 2: Convert to fraction form
2,130,027.71/2,939,435.68 = 1,259,176.27/x - Step 3: Cross multiply
2,130,027.71x = 2,939,435.68 × 1,259,176.27 - Step 4: Simplify right side
2,130,027.71x = 3,701,267,655,447.31 - Step 5: Solve for x
x = 3,701,267,655,447.31/2,130,027.71 - Step 6: Final answer
x = 1,737,661.74
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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.