Finding the Fourth Proportional to 645,621.60, 968,140.80 and 290,452.80
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Solution
The fourth proportional to 645,621.60, 968,140.80 and 290,452.80 is: 435,548.01
Step by Step Solution
- Step 1: Write the proportion equation
645,621.60 : 968,140.80 = 290,452.80 : x - Step 2: Convert to fraction form
645,621.60/968,140.80 = 290,452.80/x - Step 3: Cross multiply
645,621.60x = 968,140.80 × 290,452.80 - Step 4: Simplify right side
645,621.60x = 281,199,206,154.24 - Step 5: Solve for x
x = 281,199,206,154.24/645,621.60 - Step 6: Final answer
x = 435,548.01
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.