Finding the Fourth Proportional to 947,649.41, 1,307,988.56 and 539,991.55
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Solution
The fourth proportional to 947,649.41, 1,307,988.56 and 539,991.55 is: 745,320.75
Step by Step Solution
- Step 1: Write the proportion equation
947,649.41 : 1,307,988.56 = 539,991.55 : x - Step 2: Convert to fraction form
947,649.41/1,307,988.56 = 539,991.55/x - Step 3: Cross multiply
947,649.41x = 1,307,988.56 × 539,991.55 - Step 4: Simplify right side
947,649.41x = 706,302,769,844.18 - Step 5: Solve for x
x = 706,302,769,844.18/947,649.41 - Step 6: Final answer
x = 745,320.75
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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.