Finding the Fourth Proportional to 1,102,310.88, 1,521,089.84 and 643,465.28
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Solution
The fourth proportional to 1,102,310.88, 1,521,089.84 and 643,465.28 is: 887,924.19
Step by Step Solution
- Step 1: Write the proportion equation
1,102,310.88 : 1,521,089.84 = 643,465.28 : x - Step 2: Convert to fraction form
1,102,310.88/1,521,089.84 = 643,465.28/x - Step 3: Cross multiply
1,102,310.88x = 1,521,089.84 × 643,465.28 - Step 4: Simplify right side
1,102,310.88x = 978,768,499,800.76 - Step 5: Solve for x
x = 978,768,499,800.76/1,102,310.88 - Step 6: Final answer
x = 887,924.19
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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.