Finding the Fourth Proportional to 839,915.69, 1,257,911.63 and 772,094.68
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Solution
The fourth proportional to 839,915.69, 1,257,911.63 and 772,094.68 is: 1,156,338.54
Step by Step Solution
- Step 1: Write the proportion equation
839,915.69 : 1,257,911.63 = 772,094.68 : x - Step 2: Convert to fraction form
839,915.69/1,257,911.63 = 772,094.68/x - Step 3: Cross multiply
839,915.69x = 1,257,911.63 × 772,094.68 - Step 4: Simplify right side
839,915.69x = 971,226,876,218.59 - Step 5: Solve for x
x = 971,226,876,218.59/839,915.69 - Step 6: Final answer
x = 1,156,338.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.