Finding the Fourth Proportional to 985,775.40, 1,478,027.21 and 386,797.07
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Solution
The fourth proportional to 985,775.40, 1,478,027.21 and 386,797.07 is: 579,946.09
Step by Step Solution
- Step 1: Write the proportion equation
985,775.40 : 1,478,027.21 = 386,797.07 : x - Step 2: Convert to fraction form
985,775.40/1,478,027.21 = 386,797.07/x - Step 3: Cross multiply
985,775.40x = 1,478,027.21 × 386,797.07 - Step 4: Simplify right side
985,775.40x = 571,696,584,884.15 - Step 5: Solve for x
x = 571,696,584,884.15/985,775.40 - Step 6: Final answer
x = 579,946.09
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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.