Finding the Fourth Proportional to 819,878.99, 1,130,959.38 and 492,964.92
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Solution
The fourth proportional to 819,878.99, 1,130,959.38 and 492,964.92 is: 680,006.82
Step by Step Solution
- Step 1: Write the proportion equation
819,878.99 : 1,130,959.38 = 492,964.92 : x - Step 2: Convert to fraction form
819,878.99/1,130,959.38 = 492,964.92/x - Step 3: Cross multiply
819,878.99x = 1,130,959.38 × 492,964.92 - Step 4: Simplify right side
819,878.99x = 557,523,300,284.95 - Step 5: Solve for x
x = 557,523,300,284.95/819,878.99 - Step 6: Final answer
x = 680,006.82
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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.