Finding the Fourth Proportional to 939,860.76, 1,297,681.88 and 577,770.12
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Solution
The fourth proportional to 939,860.76, 1,297,681.88 and 577,770.12 is: 797,737.12
Step by Step Solution
- Step 1: Write the proportion equation
939,860.76 : 1,297,681.88 = 577,770.12 : x - Step 2: Convert to fraction form
939,860.76/1,297,681.88 = 577,770.12/x - Step 3: Cross multiply
939,860.76x = 1,297,681.88 × 577,770.12 - Step 4: Simplify right side
939,860.76x = 749,761,815,529.43 - Step 5: Solve for x
x = 749,761,815,529.43/939,860.76 - Step 6: Final answer
x = 797,737.12
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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.