Finding the Fourth Proportional to 931,034.70, 1,396,552.05 and 553,121.10
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Solution
The fourth proportional to 931,034.70, 1,396,552.05 and 553,121.10 is: 829,681.65
Step by Step Solution
- Step 1: Write the proportion equation
931,034.70 : 1,396,552.05 = 553,121.10 : x - Step 2: Convert to fraction form
931,034.70/1,396,552.05 = 553,121.10/x - Step 3: Cross multiply
931,034.70x = 1,396,552.05 × 553,121.10 - Step 4: Simplify right side
931,034.70x = 772,462,406,103.26 - Step 5: Solve for x
x = 772,462,406,103.26/931,034.70 - Step 6: Final answer
x = 829,681.65
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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.