Finding the Fourth Proportional to 2,124,536.70, 2,931,768.73 and 1,206,762.91
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Solution
The fourth proportional to 2,124,536.70, 2,931,768.73 and 1,206,762.91 is: 1,665,280.60
Step by Step Solution
- Step 1: Write the proportion equation
2,124,536.70 : 2,931,768.73 = 1,206,762.91 : x - Step 2: Convert to fraction form
2,124,536.70/2,931,768.73 = 1,206,762.91/x - Step 3: Cross multiply
2,124,536.70x = 2,931,768.73 × 1,206,762.91 - Step 4: Simplify right side
2,124,536.70x = 3,537,949,751,452.79 - Step 5: Solve for x
x = 3,537,949,751,452.79/2,124,536.70 - Step 6: Final answer
x = 1,665,280.60
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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.