Finding the Fourth Proportional to 717,311.08, 990,051.42 and 545,704.48
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Solution
The fourth proportional to 717,311.08, 990,051.42 and 545,704.48 is: 753,195.52
Step by Step Solution
- Step 1: Write the proportion equation
717,311.08 : 990,051.42 = 545,704.48 : x - Step 2: Convert to fraction form
717,311.08/990,051.42 = 545,704.48/x - Step 3: Cross multiply
717,311.08x = 990,051.42 × 545,704.48 - Step 4: Simplify right side
717,311.08x = 540,275,495,324.36 - Step 5: Solve for x
x = 540,275,495,324.36/717,311.08 - Step 6: Final answer
x = 753,195.52
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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.