Finding the Fourth Proportional to 784,977.98, 1,083,438.44 and 478,988.82
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Solution
The fourth proportional to 784,977.98, 1,083,438.44 and 478,988.82 is: 661,107.59
Step by Step Solution
- Step 1: Write the proportion equation
784,977.98 : 1,083,438.44 = 478,988.82 : x - Step 2: Convert to fraction form
784,977.98/1,083,438.44 = 478,988.82/x - Step 3: Cross multiply
784,977.98x = 1,083,438.44 × 478,988.82 - Step 4: Simplify right side
784,977.98x = 518,954,899,918.24 - Step 5: Solve for x
x = 518,954,899,918.24/784,977.98 - Step 6: Final answer
x = 661,107.59
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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.