Finding the Fourth Proportional to 1,239,631.84, 1,860,444.06 and 640,768.42
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Solution
The fourth proportional to 1,239,631.84, 1,860,444.06 and 640,768.42 is: 961,667.62
Step by Step Solution
- Step 1: Write the proportion equation
1,239,631.84 : 1,860,444.06 = 640,768.42 : x - Step 2: Convert to fraction form
1,239,631.84/1,860,444.06 = 640,768.42/x - Step 3: Cross multiply
1,239,631.84x = 1,860,444.06 × 640,768.42 - Step 4: Simplify right side
1,239,631.84x = 1,192,113,800,824.59 - Step 5: Solve for x
x = 1,192,113,800,824.59/1,239,631.84 - Step 6: Final answer
x = 961,667.62
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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.