Finding the Fourth Proportional to 1,497,978.62, 2,067,217.80 and 818,915.12
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Solution
The fourth proportional to 1,497,978.62, 2,067,217.80 and 818,915.12 is: 1,130,106.86
Step by Step Solution
- Step 1: Write the proportion equation
1,497,978.62 : 2,067,217.80 = 818,915.12 : x - Step 2: Convert to fraction form
1,497,978.62/2,067,217.80 = 818,915.12/x - Step 3: Cross multiply
1,497,978.62x = 2,067,217.80 × 818,915.12 - Step 4: Simplify right side
1,497,978.62x = 1,692,875,912,753.14 - Step 5: Solve for x
x = 1,692,875,912,753.14/1,497,978.62 - Step 6: Final answer
x = 1,130,106.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.