Finding the Fourth Proportional to 528,995.14, 730,236.67 and 357,145.79
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Solution
The fourth proportional to 528,995.14, 730,236.67 and 357,145.79 is: 493,012.00
Step by Step Solution
- Step 1: Write the proportion equation
528,995.14 : 730,236.67 = 357,145.79 : x - Step 2: Convert to fraction form
528,995.14/730,236.67 = 357,145.79/x - Step 3: Cross multiply
528,995.14x = 730,236.67 × 357,145.79 - Step 4: Simplify right side
528,995.14x = 260,800,952,394.12 - Step 5: Solve for x
x = 260,800,952,394.12/528,995.14 - Step 6: Final answer
x = 493,012.00
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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.