Finding the Fourth Proportional to 947,289.97, 1,421,946.51 and 407,813.23
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Solution
The fourth proportional to 947,289.97, 1,421,946.51 and 407,813.23 is: 612,155.32
Step by Step Solution
- Step 1: Write the proportion equation
947,289.97 : 1,421,946.51 = 407,813.23 : x - Step 2: Convert to fraction form
947,289.97/1,421,946.51 = 407,813.23/x - Step 3: Cross multiply
947,289.97x = 1,421,946.51 × 407,813.23 - Step 4: Simplify right side
947,289.97x = 579,888,599,130.33 - Step 5: Solve for x
x = 579,888,599,130.33/947,289.97 - Step 6: Final answer
x = 612,155.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.