Finding the Fourth Proportional to 947,809.84, 1,307,977.64 and 518,091.68
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Solution
The fourth proportional to 947,809.84, 1,307,977.64 and 518,091.68 is: 714,966.55
Step by Step Solution
- Step 1: Write the proportion equation
947,809.84 : 1,307,977.64 = 518,091.68 : x - Step 2: Convert to fraction form
947,809.84/1,307,977.64 = 518,091.68/x - Step 3: Cross multiply
947,809.84x = 1,307,977.64 × 518,091.68 - Step 4: Simplify right side
947,809.84x = 677,652,332,910.04 - Step 5: Solve for x
x = 677,652,332,910.04/947,809.84 - Step 6: Final answer
x = 714,966.55
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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.