Finding the Fourth Proportional to 1,512,383.03, 2,087,235.66 and 1,129,745.51
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Solution
The fourth proportional to 1,512,383.03, 2,087,235.66 and 1,129,745.51 is: 1,559,158.67
Step by Step Solution
- Step 1: Write the proportion equation
1,512,383.03 : 2,087,235.66 = 1,129,745.51 : x - Step 2: Convert to fraction form
1,512,383.03/2,087,235.66 = 1,129,745.51/x - Step 3: Cross multiply
1,512,383.03x = 2,087,235.66 × 1,129,745.51 - Step 4: Simplify right side
1,512,383.03x = 2,358,045,104,760.71 - Step 5: Solve for x
x = 2,358,045,104,760.71/1,512,383.03 - Step 6: Final answer
x = 1,559,158.67
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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.