Finding the Fourth Proportional to 1,248,031.20, 1,722,134.88 and 704,135.28
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Solution
The fourth proportional to 1,248,031.20, 1,722,134.88 and 704,135.28 is: 971,623.09
Step by Step Solution
- Step 1: Write the proportion equation
1,248,031.20 : 1,722,134.88 = 704,135.28 : x - Step 2: Convert to fraction form
1,248,031.20/1,722,134.88 = 704,135.28/x - Step 3: Cross multiply
1,248,031.20x = 1,722,134.88 × 704,135.28 - Step 4: Simplify right side
1,248,031.20x = 1,212,615,925,926.57 - Step 5: Solve for x
x = 1,212,615,925,926.57/1,248,031.20 - Step 6: Final answer
x = 971,623.09
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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.