Finding the Fourth Proportional to 1,902,425.12, 2,625,340.55 and 1,031,263.20
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Solution
The fourth proportional to 1,902,425.12, 2,625,340.55 and 1,031,263.20 is: 1,423,139.90
Step by Step Solution
- Step 1: Write the proportion equation
1,902,425.12 : 2,625,340.55 = 1,031,263.20 : x - Step 2: Convert to fraction form
1,902,425.12/2,625,340.55 = 1,031,263.20/x - Step 3: Cross multiply
1,902,425.12x = 2,625,340.55 × 1,031,263.20 - Step 4: Simplify right side
1,902,425.12x = 2,707,417,091,526.44 - Step 5: Solve for x
x = 2,707,417,091,526.44/1,902,425.12 - Step 6: Final answer
x = 1,423,139.90
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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.