Finding the Fourth Proportional to 947,289.28, 1,307,243.94 and 517,560.19
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Solution
The fourth proportional to 947,289.28, 1,307,243.94 and 517,560.19 is: 714,224.72
Step by Step Solution
- Step 1: Write the proportion equation
947,289.28 : 1,307,243.94 = 517,560.19 : x - Step 2: Convert to fraction form
947,289.28/1,307,243.94 = 517,560.19/x - Step 3: Cross multiply
947,289.28x = 1,307,243.94 × 517,560.19 - Step 4: Simplify right side
947,289.28x = 676,577,421,962.75 - Step 5: Solve for x
x = 676,577,421,962.75/947,289.28 - Step 6: Final answer
x = 714,224.72
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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.