Finding the Fourth Proportional to 2,038,808.28, 2,813,627.34 and 1,121,107.32
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Solution
The fourth proportional to 2,038,808.28, 2,813,627.34 and 1,121,107.32 is: 1,547,167.65
Step by Step Solution
- Step 1: Write the proportion equation
2,038,808.28 : 2,813,627.34 = 1,121,107.32 : x - Step 2: Convert to fraction form
2,038,808.28/2,813,627.34 = 1,121,107.32/x - Step 3: Cross multiply
2,038,808.28x = 2,813,627.34 × 1,121,107.32 - Step 4: Simplify right side
2,038,808.28x = 3,154,378,206,626.13 - Step 5: Solve for x
x = 3,154,378,206,626.13/2,038,808.28 - Step 6: Final answer
x = 1,547,167.65
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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.