Finding the Fourth Proportional to 998,079.98, 1,377,378.69 and 556,564.64
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Solution
The fourth proportional to 998,079.98, 1,377,378.69 and 556,564.64 is: 768,074.99
Step by Step Solution
- Step 1: Write the proportion equation
998,079.98 : 1,377,378.69 = 556,564.64 : x - Step 2: Convert to fraction form
998,079.98/1,377,378.69 = 556,564.64/x - Step 3: Cross multiply
998,079.98x = 1,377,378.69 × 556,564.64 - Step 4: Simplify right side
998,079.98x = 766,600,274,743.52 - Step 5: Solve for x
x = 766,600,274,743.52/998,079.98 - Step 6: Final answer
x = 768,074.99
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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.