Finding the Fourth Proportional to 1,184,140.54, 1,634,115.08 and 640,276.18
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Solution
The fourth proportional to 1,184,140.54, 1,634,115.08 and 640,276.18 is: 883,581.74
Step by Step Solution
- Step 1: Write the proportion equation
1,184,140.54 : 1,634,115.08 = 640,276.18 : x - Step 2: Convert to fraction form
1,184,140.54/1,634,115.08 = 640,276.18/x - Step 3: Cross multiply
1,184,140.54x = 1,634,115.08 × 640,276.18 - Step 4: Simplify right side
1,184,140.54x = 1,046,284,961,102.79 - Step 5: Solve for x
x = 1,046,284,961,102.79/1,184,140.54 - Step 6: Final answer
x = 883,581.74
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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.