Finding the Fourth Proportional to 1,175,069.68, 1,621,620.12 and 638,560.24
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Solution
The fourth proportional to 1,175,069.68, 1,621,620.12 and 638,560.24 is: 881,226.15
Step by Step Solution
- Step 1: Write the proportion equation
1,175,069.68 : 1,621,620.12 = 638,560.24 : x - Step 2: Convert to fraction form
1,175,069.68/1,621,620.12 = 638,560.24/x - Step 3: Cross multiply
1,175,069.68x = 1,621,620.12 × 638,560.24 - Step 4: Simplify right side
1,175,069.68x = 1,035,502,133,016.03 - Step 5: Solve for x
x = 1,035,502,133,016.03/1,175,069.68 - Step 6: Final answer
x = 881,226.15
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1.5x scale
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.