Finding the Fourth Proportional to 1,565,478.82, 2,160,329.34 and 877,142.44
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Solution
The fourth proportional to 1,565,478.82, 2,160,329.34 and 877,142.44 is: 1,210,438.96
Step by Step Solution
- Step 1: Write the proportion equation
1,565,478.82 : 2,160,329.34 = 877,142.44 : x - Step 2: Convert to fraction form
1,565,478.82/2,160,329.34 = 877,142.44/x - Step 3: Cross multiply
1,565,478.82x = 2,160,329.34 × 877,142.44 - Step 4: Simplify right side
1,565,478.82x = 1,894,916,548,491.19 - Step 5: Solve for x
x = 1,894,916,548,491.19/1,565,478.82 - Step 6: Final answer
x = 1,210,438.96
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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.