Finding the Fourth Proportional to 877,028.08, 1,210,299.96 and 474,620.08
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Solution
The fourth proportional to 877,028.08, 1,210,299.96 and 474,620.08 is: 654,976.36
Step by Step Solution
- Step 1: Write the proportion equation
877,028.08 : 1,210,299.96 = 474,620.08 : x - Step 2: Convert to fraction form
877,028.08/1,210,299.96 = 474,620.08/x - Step 3: Cross multiply
877,028.08x = 1,210,299.96 × 474,620.08 - Step 4: Simplify right side
877,028.08x = 574,432,663,839.20 - Step 5: Solve for x
x = 574,432,663,839.20/877,028.08 - Step 6: Final answer
x = 654,976.36
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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.