Finding the Fourth Proportional to 412,209.84, 618,373.47 and 127,924.95
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Solution
The fourth proportional to 412,209.84, 618,373.47 and 127,924.95 is: 191,905.65
Step by Step Solution
- Step 1: Write the proportion equation
412,209.84 : 618,373.47 = 127,924.95 : x - Step 2: Convert to fraction form
412,209.84/618,373.47 = 127,924.95/x - Step 3: Cross multiply
412,209.84x = 618,373.47 × 127,924.95 - Step 4: Simplify right side
412,209.84x = 79,105,395,231.08 - Step 5: Solve for x
x = 79,105,395,231.08/412,209.84 - Step 6: Final answer
x = 191,905.65
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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.