Finding the Fourth Proportional to 643,224.84, 887,637.06 and 356,698.68
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Solution
The fourth proportional to 643,224.84, 887,637.06 and 356,698.68 is: 492,236.85
Step by Step Solution
- Step 1: Write the proportion equation
643,224.84 : 887,637.06 = 356,698.68 : x - Step 2: Convert to fraction form
643,224.84/887,637.06 = 356,698.68/x - Step 3: Cross multiply
643,224.84x = 887,637.06 × 356,698.68 - Step 4: Simplify right side
643,224.84x = 316,618,967,621.08 - Step 5: Solve for x
x = 316,618,967,621.08/643,224.84 - Step 6: Final answer
x = 492,236.85
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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.