Finding the Fourth Proportional to 412,823.80, 619,235.70 and 246,935.80
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Solution
The fourth proportional to 412,823.80, 619,235.70 and 246,935.80 is: 370,403.70
Step by Step Solution
- Step 1: Write the proportion equation
412,823.80 : 619,235.70 = 246,935.80 : x - Step 2: Convert to fraction form
412,823.80/619,235.70 = 246,935.80/x - Step 3: Cross multiply
412,823.80x = 619,235.70 × 246,935.80 - Step 4: Simplify right side
412,823.80x = 152,911,462,968.06 - Step 5: Solve for x
x = 152,911,462,968.06/412,823.80 - Step 6: Final answer
x = 370,403.70
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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.