Finding the Fourth Proportional to 1,031,536.42, 1,423,743.08 and 787,156.18
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Solution
The fourth proportional to 1,031,536.42, 1,423,743.08 and 787,156.18 is: 1,086,445.56
Step by Step Solution
- Step 1: Write the proportion equation
1,031,536.42 : 1,423,743.08 = 787,156.18 : x - Step 2: Convert to fraction form
1,031,536.42/1,423,743.08 = 787,156.18/x - Step 3: Cross multiply
1,031,536.42x = 1,423,743.08 × 787,156.18 - Step 4: Simplify right side
1,031,536.42x = 1,120,708,156,659.10 - Step 5: Solve for x
x = 1,120,708,156,659.10/1,031,536.42 - Step 6: Final answer
x = 1,086,445.56
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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.