Finding the Fourth Proportional to 528,994.14, 730,235.29 and 357,144.79
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Solution
The fourth proportional to 528,994.14, 730,235.29 and 357,144.79 is: 493,010.62
Step by Step Solution
- Step 1: Write the proportion equation
528,994.14 : 730,235.29 = 357,144.79 : x - Step 2: Convert to fraction form
528,994.14/730,235.29 = 357,144.79/x - Step 3: Cross multiply
528,994.14x = 730,235.29 × 357,144.79 - Step 4: Simplify right side
528,994.14x = 260,799,728,404.78 - Step 5: Solve for x
x = 260,799,728,404.78/528,994.14 - Step 6: Final answer
x = 493,010.62
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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.