Finding the Fourth Proportional to 490,829.67, 677,117.58 and 286,889.18
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Solution
The fourth proportional to 490,829.67, 677,117.58 and 286,889.18 is: 395,774.17
Step by Step Solution
- Step 1: Write the proportion equation
490,829.67 : 677,117.58 = 286,889.18 : x - Step 2: Convert to fraction form
490,829.67/677,117.58 = 286,889.18/x - Step 3: Cross multiply
490,829.67x = 677,117.58 × 286,889.18 - Step 4: Simplify right side
490,829.67x = 194,257,703,904.20 - Step 5: Solve for x
x = 194,257,703,904.20/490,829.67 - Step 6: Final answer
x = 395,774.17
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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.