Finding the Fourth Proportional to 787,815.08, 1,087,170.90 and 448,276.04
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Solution
The fourth proportional to 787,815.08, 1,087,170.90 and 448,276.04 is: 618,613.02
Step by Step Solution
- Step 1: Write the proportion equation
787,815.08 : 1,087,170.90 = 448,276.04 : x - Step 2: Convert to fraction form
787,815.08/1,087,170.90 = 448,276.04/x - Step 3: Cross multiply
787,815.08x = 1,087,170.90 × 448,276.04 - Step 4: Simplify right side
787,815.08x = 487,352,665,855.24 - Step 5: Solve for x
x = 487,352,665,855.24/787,815.08 - Step 6: Final answer
x = 618,613.02
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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.