Finding the Fourth Proportional to 449,702.93, 620,653.35 and 286,307.26
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Solution
The fourth proportional to 449,702.93, 620,653.35 and 286,307.26 is: 395,144.32
Step by Step Solution
- Step 1: Write the proportion equation
449,702.93 : 620,653.35 = 286,307.26 : x - Step 2: Convert to fraction form
449,702.93/620,653.35 = 286,307.26/x - Step 3: Cross multiply
449,702.93x = 620,653.35 × 286,307.26 - Step 4: Simplify right side
449,702.93x = 177,697,559,570.34 - Step 5: Solve for x
x = 177,697,559,570.34/449,702.93 - Step 6: Final answer
x = 395,144.32
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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.