Finding the Fourth Proportional to 2,013,991.84, 2,779,574.16 and 1,209,227.68
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Solution
The fourth proportional to 2,013,991.84, 2,779,574.16 and 1,209,227.68 is: 1,668,893.56
Step by Step Solution
- Step 1: Write the proportion equation
2,013,991.84 : 2,779,574.16 = 1,209,227.68 : x - Step 2: Convert to fraction form
2,013,991.84/2,779,574.16 = 1,209,227.68/x - Step 3: Cross multiply
2,013,991.84x = 2,779,574.16 × 1,209,227.68 - Step 4: Simplify right side
2,013,991.84x = 3,361,138,012,884.75 - Step 5: Solve for x
x = 3,361,138,012,884.75/2,013,991.84 - Step 6: Final answer
x = 1,668,893.56
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1.5x scale
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.