Finding the Fourth Proportional to 562,078.90, 775,687.35 and 307,430.09
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Solution
The fourth proportional to 562,078.90, 775,687.35 and 307,430.09 is: 424,263.63
Step by Step Solution
- Step 1: Write the proportion equation
562,078.90 : 775,687.35 = 307,430.09 : x - Step 2: Convert to fraction form
562,078.90/775,687.35 = 307,430.09/x - Step 3: Cross multiply
562,078.90x = 775,687.35 × 307,430.09 - Step 4: Simplify right side
562,078.90x = 238,469,631,822.36 - Step 5: Solve for x
x = 238,469,631,822.36/562,078.90 - Step 6: Final answer
x = 424,263.63
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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.