Finding the Fourth Proportional to 687,017.30, 948,197.30 and 381,192.08
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Solution
The fourth proportional to 687,017.30, 948,197.30 and 381,192.08 is: 526,108.00
Step by Step Solution
- Step 1: Write the proportion equation
687,017.30 : 948,197.30 = 381,192.08 : x - Step 2: Convert to fraction form
687,017.30/948,197.30 = 381,192.08/x - Step 3: Cross multiply
687,017.30x = 948,197.30 × 381,192.08 - Step 4: Simplify right side
687,017.30x = 361,445,294,390.44 - Step 5: Solve for x
x = 361,445,294,390.44/687,017.30 - Step 6: Final answer
x = 526,108.00
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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.