Finding the Fourth Proportional to 1,543,390.02, 2,129,493.51 and 890,215.74
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Solution
The fourth proportional to 1,543,390.02, 2,129,493.51 and 890,215.74 is: 1,228,275.82
Step by Step Solution
- Step 1: Write the proportion equation
1,543,390.02 : 2,129,493.51 = 890,215.74 : x - Step 2: Convert to fraction form
1,543,390.02/2,129,493.51 = 890,215.74/x - Step 3: Cross multiply
1,543,390.02x = 2,129,493.51 × 890,215.74 - Step 4: Simplify right side
1,543,390.02x = 1,895,708,640,829.85 - Step 5: Solve for x
x = 1,895,708,640,829.85/1,543,390.02 - Step 6: Final answer
x = 1,228,275.82
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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.