Finding the Fourth Proportional to 644,003.58, 970,634.38 and 555,119.09
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Solution
The fourth proportional to 644,003.58, 970,634.38 and 555,119.09 is: 836,668.74
Step by Step Solution
- Step 1: Write the proportion equation
644,003.58 : 970,634.38 = 555,119.09 : x - Step 2: Convert to fraction form
644,003.58/970,634.38 = 555,119.09/x - Step 3: Cross multiply
644,003.58x = 970,634.38 × 555,119.09 - Step 4: Simplify right side
644,003.58x = 538,817,666,119.55 - Step 5: Solve for x
x = 538,817,666,119.55/644,003.58 - Step 6: Final answer
x = 836,668.74
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.