Finding the Fourth Proportional to 556,610.49, 768,122.58 and 314,888.07
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Solution
The fourth proportional to 556,610.49, 768,122.58 and 314,888.07 is: 434,545.60
Step by Step Solution
- Step 1: Write the proportion equation
556,610.49 : 768,122.58 = 314,888.07 : x - Step 2: Convert to fraction form
556,610.49/768,122.58 = 314,888.07/x - Step 3: Cross multiply
556,610.49x = 768,122.58 × 314,888.07 - Step 4: Simplify right side
556,610.49x = 241,872,636,739.62 - Step 5: Solve for x
x = 241,872,636,739.62/556,610.49 - Step 6: Final answer
x = 434,545.60
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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.