Finding the Fourth Proportional to 698,748.41, 964,307.01 and 392,921.07
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Solution
The fourth proportional to 698,748.41, 964,307.01 and 392,921.07 is: 542,250.31
Step by Step Solution
- Step 1: Write the proportion equation
698,748.41 : 964,307.01 = 392,921.07 : x - Step 2: Convert to fraction form
698,748.41/964,307.01 = 392,921.07/x - Step 3: Cross multiply
698,748.41x = 964,307.01 × 392,921.07 - Step 4: Simplify right side
698,748.41x = 378,896,542,177.70 - Step 5: Solve for x
x = 378,896,542,177.70/698,748.41 - Step 6: Final answer
x = 542,250.31
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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.