Finding the Fourth Proportional to 620,364.42, 930,551.49 and 339,728.58
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Solution
The fourth proportional to 620,364.42, 930,551.49 and 339,728.58 is: 509,595.53
Step by Step Solution
- Step 1: Write the proportion equation
620,364.42 : 930,551.49 = 339,728.58 : x - Step 2: Convert to fraction form
620,364.42/930,551.49 = 339,728.58/x - Step 3: Cross multiply
620,364.42x = 930,551.49 × 339,728.58 - Step 4: Simplify right side
620,364.42x = 316,134,936,314.58 - Step 5: Solve for x
x = 316,134,936,314.58/620,364.42 - Step 6: Final answer
x = 509,595.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.