Finding the Fourth Proportional to 872,220.98, 1,203,679.16 and 479,769.45
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Solution
The fourth proportional to 872,220.98, 1,203,679.16 and 479,769.45 is: 662,089.65
Step by Step Solution
- Step 1: Write the proportion equation
872,220.98 : 1,203,679.16 = 479,769.45 : x - Step 2: Convert to fraction form
872,220.98/1,203,679.16 = 479,769.45/x - Step 3: Cross multiply
872,220.98x = 1,203,679.16 × 479,769.45 - Step 4: Simplify right side
872,220.98x = 577,488,483,161.62 - Step 5: Solve for x
x = 577,488,483,161.62/872,220.98 - Step 6: Final answer
x = 662,089.65
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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.