Finding the Fourth Proportional to 617,809.20, 926,713.80 and 368,977.20
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Solution
The fourth proportional to 617,809.20, 926,713.80 and 368,977.20 is: 553,465.80
Step by Step Solution
- Step 1: Write the proportion equation
617,809.20 : 926,713.80 = 368,977.20 : x - Step 2: Convert to fraction form
617,809.20/926,713.80 = 368,977.20/x - Step 3: Cross multiply
617,809.20x = 926,713.80 × 368,977.20 - Step 4: Simplify right side
617,809.20x = 341,936,263,125.36 - Step 5: Solve for x
x = 341,936,263,125.36/617,809.20 - Step 6: Final answer
x = 553,465.80
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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.