Finding the Fourth Proportional to 1,358,128.02, 1,872,931.97 and 892,159.23
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Solution
The fourth proportional to 1,358,128.02, 1,872,931.97 and 892,159.23 is: 1,230,335.81
Step by Step Solution
- Step 1: Write the proportion equation
1,358,128.02 : 1,872,931.97 = 892,159.23 : x - Step 2: Convert to fraction form
1,358,128.02/1,872,931.97 = 892,159.23/x - Step 3: Cross multiply
1,358,128.02x = 1,872,931.97 × 892,159.23 - Step 4: Simplify right side
1,358,128.02x = 1,670,953,530,372.13 - Step 5: Solve for x
x = 1,670,953,530,372.13/1,358,128.02 - Step 6: Final answer
x = 1,230,335.81
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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.