Finding the Fourth Proportional to 673,228.18, 929,137.13 and 386,747.65
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Solution
The fourth proportional to 673,228.18, 929,137.13 and 386,747.65 is: 533,759.00
Step by Step Solution
- Step 1: Write the proportion equation
673,228.18 : 929,137.13 = 386,747.65 : x - Step 2: Convert to fraction form
673,228.18/929,137.13 = 386,747.65/x - Step 3: Cross multiply
673,228.18x = 929,137.13 × 386,747.65 - Step 4: Simplify right side
673,228.18x = 359,341,601,555.25 - Step 5: Solve for x
x = 359,341,601,555.25/673,228.18 - Step 6: Final answer
x = 533,759.00
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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.