Finding the Fourth Proportional to 787,115.40, 1,180,673.10 and 313,873.80
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Solution
The fourth proportional to 787,115.40, 1,180,673.10 and 313,873.80 is: 470,810.70
Step by Step Solution
- Step 1: Write the proportion equation
787,115.40 : 1,180,673.10 = 313,873.80 : x - Step 2: Convert to fraction form
787,115.40/1,180,673.10 = 313,873.80/x - Step 3: Cross multiply
787,115.40x = 1,180,673.10 × 313,873.80 - Step 4: Simplify right side
787,115.40x = 370,582,352,454.78 - Step 5: Solve for x
x = 370,582,352,454.78/787,115.40 - Step 6: Final answer
x = 470,810.70
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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.