Finding the Fourth Proportional to 690,029.44, 947,153.12 and 612,891.52
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Solution
The fourth proportional to 690,029.44, 947,153.12 and 612,891.52 is: 841,271.52
Step by Step Solution
- Step 1: Write the proportion equation
690,029.44 : 947,153.12 = 612,891.52 : x - Step 2: Convert to fraction form
690,029.44/947,153.12 = 612,891.52/x - Step 3: Cross multiply
690,029.44x = 947,153.12 × 612,891.52 - Step 4: Simplify right side
690,029.44x = 580,502,115,389.54 - Step 5: Solve for x
x = 580,502,115,389.54/690,029.44 - Step 6: Final answer
x = 841,271.52
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.