Finding the Fourth Proportional to 2,139,734.40, 3,206,221.14 and 790,036.80
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Solution
The fourth proportional to 2,139,734.40, 3,206,221.14 and 790,036.80 is: 1,183,807.06
Step by Step Solution
- Step 1: Write the proportion equation
2,139,734.40 : 3,206,221.14 = 790,036.80 : x - Step 2: Convert to fraction form
2,139,734.40/3,206,221.14 = 790,036.80/x - Step 3: Cross multiply
2,139,734.40x = 3,206,221.14 × 790,036.80 - Step 4: Simplify right side
2,139,734.40x = 2,533,032,689,537.95 - Step 5: Solve for x
x = 2,533,032,689,537.95/2,139,734.40 - Step 6: Final answer
x = 1,183,807.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.