Finding the Fourth Proportional to 746,500,578.40, 1,119,750,867.60 and 439,634,735.20
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Solution
The fourth proportional to 746,500,578.40, 1,119,750,867.60 and 439,634,735.20 is: 659,452,102.80
Step by Step Solution
- Step 1: Write the proportion equation
746,500,578.40 : 1,119,750,867.60 = 439,634,735.20 : x - Step 2: Convert to fraction form
746,500,578.40/1,119,750,867.60 = 439,634,735.20/x - Step 3: Cross multiply
746,500,578.40x = 1,119,750,867.60 × 439,634,735.20 - Step 4: Simplify right side
746,500,578.40x = 492,281,376,167,296,192 - Step 5: Solve for x
x = 492,281,376,167,296,192/746,500,578.40 - Step 6: Final answer
x = 659,452,102.80
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Similar ratio
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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.