Finding the Fourth Proportional to 639,031.68, 882,157.26 and 551,468.46
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Solution
The fourth proportional to 639,031.68, 882,157.26 and 551,468.46 is: 761,279.79
Step by Step Solution
- Step 1: Write the proportion equation
639,031.68 : 882,157.26 = 551,468.46 : x - Step 2: Convert to fraction form
639,031.68/882,157.26 = 551,468.46/x - Step 3: Cross multiply
639,031.68x = 882,157.26 × 551,468.46 - Step 4: Simplify right side
639,031.68x = 486,481,905,650.02 - Step 5: Solve for x
x = 486,481,905,650.02/639,031.68 - Step 6: Final answer
x = 761,279.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.