Finding the Fourth Proportional to 1,000,647.35, 1,380,867.75 and 559,125.47
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Solution
The fourth proportional to 1,000,647.35, 1,380,867.75 and 559,125.47 is: 771,578.84
Step by Step Solution
- Step 1: Write the proportion equation
1,000,647.35 : 1,380,867.75 = 559,125.47 : x - Step 2: Convert to fraction form
1,000,647.35/1,380,867.75 = 559,125.47/x - Step 3: Cross multiply
1,000,647.35x = 1,380,867.75 × 559,125.47 - Step 4: Simplify right side
1,000,647.35x = 772,078,322,822.25 - Step 5: Solve for x
x = 772,078,322,822.25/1,000,647.35 - Step 6: Final answer
x = 771,578.84
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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.