Finding the Fourth Proportional to 717,370.55, 990,078.99 and 545,004.88
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Solution
The fourth proportional to 717,370.55, 990,078.99 and 545,004.88 is: 752,188.49
Step by Step Solution
- Step 1: Write the proportion equation
717,370.55 : 990,078.99 = 545,004.88 : x - Step 2: Convert to fraction form
717,370.55/990,078.99 = 545,004.88/x - Step 3: Cross multiply
717,370.55x = 990,078.99 × 545,004.88 - Step 4: Simplify right side
717,370.55x = 539,597,873,460.05 - Step 5: Solve for x
x = 539,597,873,460.05/717,370.55 - Step 6: Final answer
x = 752,188.49
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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.