Finding the Fourth Proportional to 985,615.20, 1,360,148.58 and 555,894.36
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Solution
The fourth proportional to 985,615.20, 1,360,148.58 and 555,894.36 is: 767,133.99
Step by Step Solution
- Step 1: Write the proportion equation
985,615.20 : 1,360,148.58 = 555,894.36 : x - Step 2: Convert to fraction form
985,615.20/1,360,148.58 = 555,894.36/x - Step 3: Cross multiply
985,615.20x = 1,360,148.58 × 555,894.36 - Step 4: Simplify right side
985,615.20x = 756,098,924,384.01 - Step 5: Solve for x
x = 756,098,924,384.01/985,615.20 - Step 6: Final answer
x = 767,133.99
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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.