Finding the Fourth Proportional to 638,069.04, 880,574.58 and 351,589.08
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Solution
The fourth proportional to 638,069.04, 880,574.58 and 351,589.08 is: 485,214.59
Step by Step Solution
- Step 1: Write the proportion equation
638,069.04 : 880,574.58 = 351,589.08 : x - Step 2: Convert to fraction form
638,069.04/880,574.58 = 351,589.08/x - Step 3: Cross multiply
638,069.04x = 880,574.58 × 351,589.08 - Step 4: Simplify right side
638,069.04x = 309,600,406,453.59 - Step 5: Solve for x
x = 309,600,406,453.59/638,069.04 - Step 6: Final answer
x = 485,214.59
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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.