Finding the Fourth Proportional to 2,121,878.04, 2,928,229.08 and 1,155,036.12
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Solution
The fourth proportional to 2,121,878.04, 2,928,229.08 and 1,155,036.12 is: 1,593,970.20
Step by Step Solution
- Step 1: Write the proportion equation
2,121,878.04 : 2,928,229.08 = 1,155,036.12 : x - Step 2: Convert to fraction form
2,121,878.04/2,928,229.08 = 1,155,036.12/x - Step 3: Cross multiply
2,121,878.04x = 2,928,229.08 × 1,155,036.12 - Step 4: Simplify right side
2,121,878.04x = 3,382,210,355,034.37 - Step 5: Solve for x
x = 3,382,210,355,034.37/2,121,878.04 - Step 6: Final answer
x = 1,593,970.20
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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.