Finding the Fourth Proportional to 1,105,890.68, 1,657,848.18 and 431,815.16
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Solution
The fourth proportional to 1,105,890.68, 1,657,848.18 and 431,815.16 is: 647,337.02
Step by Step Solution
- Step 1: Write the proportion equation
1,105,890.68 : 1,657,848.18 = 431,815.16 : x - Step 2: Convert to fraction form
1,105,890.68/1,657,848.18 = 431,815.16/x - Step 3: Cross multiply
1,105,890.68x = 1,657,848.18 × 431,815.16 - Step 4: Simplify right side
1,105,890.68x = 715,883,977,102.41 - Step 5: Solve for x
x = 715,883,977,102.41/1,105,890.68 - Step 6: Final answer
x = 647,337.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.