Finding the Fourth Proportional to 2,180,678.08, 3,009,268.80 and 1,213,783.52
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Solution
The fourth proportional to 2,180,678.08, 3,009,268.80 and 1,213,783.52 is: 1,674,983.99
Step by Step Solution
- Step 1: Write the proportion equation
2,180,678.08 : 3,009,268.80 = 1,213,783.52 : x - Step 2: Convert to fraction form
2,180,678.08/3,009,268.80 = 1,213,783.52/x - Step 3: Cross multiply
2,180,678.08x = 3,009,268.80 × 1,213,783.52 - Step 4: Simplify right side
2,180,678.08x = 3,652,600,876,690.18 - Step 5: Solve for x
x = 3,652,600,876,690.18/2,180,678.08 - Step 6: Final answer
x = 1,674,983.99
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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.