Finding the Fourth Proportional to 688,729.97, 1,031,376.80 and 435,245.74
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Solution
The fourth proportional to 688,729.97, 1,031,376.80 and 435,245.74 is: 651,782.81
Step by Step Solution
- Step 1: Write the proportion equation
688,729.97 : 1,031,376.80 = 435,245.74 : x - Step 2: Convert to fraction form
688,729.97/1,031,376.80 = 435,245.74/x - Step 3: Cross multiply
688,729.97x = 1,031,376.80 × 435,245.74 - Step 4: Simplify right side
688,729.97x = 448,902,354,596.25 - Step 5: Solve for x
x = 448,902,354,596.25/688,729.97 - Step 6: Final answer
x = 651,782.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.