Finding the Fourth Proportional to 790,280.36, 1,185,543.58 and 257,677.80
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Solution
The fourth proportional to 790,280.36, 1,185,543.58 and 257,677.80 is: 386,556.82
Step by Step Solution
- Step 1: Write the proportion equation
790,280.36 : 1,185,543.58 = 257,677.80 : x - Step 2: Convert to fraction form
790,280.36/1,185,543.58 = 257,677.80/x - Step 3: Cross multiply
790,280.36x = 1,185,543.58 × 257,677.80 - Step 4: Simplify right side
790,280.36x = 305,488,261,498.52 - Step 5: Solve for x
x = 305,488,261,498.52/790,280.36 - Step 6: Final answer
x = 386,556.82
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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.