Finding the Fourth Proportional to 1,380,305.52, 1,904,378.58 and 836,267.40
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Solution
The fourth proportional to 1,380,305.52, 1,904,378.58 and 836,267.40 is: 1,153,780.59
Step by Step Solution
- Step 1: Write the proportion equation
1,380,305.52 : 1,904,378.58 = 836,267.40 : x - Step 2: Convert to fraction form
1,380,305.52/1,904,378.58 = 836,267.40/x - Step 3: Cross multiply
1,380,305.52x = 1,904,378.58 × 836,267.40 - Step 4: Simplify right side
1,380,305.52x = 1,592,569,723,712.29 - Step 5: Solve for x
x = 1,592,569,723,712.29/1,380,305.52 - Step 6: Final answer
x = 1,153,780.59
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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.