Finding the Fourth Proportional to 1,358,129.42, 1,874,108.90 and 785,206.49
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Solution
The fourth proportional to 1,358,129.42, 1,874,108.90 and 785,206.49 is: 1,083,521.53
Step by Step Solution
- Step 1: Write the proportion equation
1,358,129.42 : 1,874,108.90 = 785,206.49 : x - Step 2: Convert to fraction form
1,358,129.42/1,874,108.90 = 785,206.49/x - Step 3: Cross multiply
1,358,129.42x = 1,874,108.90 × 785,206.49 - Step 4: Simplify right side
1,358,129.42x = 1,471,562,457,950.18 - Step 5: Solve for x
x = 1,471,562,457,950.18/1,358,129.42 - Step 6: Final answer
x = 1,083,521.53
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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.