Finding the Fourth Proportional to 923,572.71, 1,274,518.17 and 515,681.55
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Solution
The fourth proportional to 923,572.71, 1,274,518.17 and 515,681.55 is: 711,633.74
Step by Step Solution
- Step 1: Write the proportion equation
923,572.71 : 1,274,518.17 = 515,681.55 : x - Step 2: Convert to fraction form
923,572.71/1,274,518.17 = 515,681.55/x - Step 3: Cross multiply
923,572.71x = 1,274,518.17 × 515,681.55 - Step 4: Simplify right side
923,572.71x = 657,245,505,408.76 - Step 5: Solve for x
x = 657,245,505,408.76/923,572.71 - Step 6: Final answer
x = 711,633.74
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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.