Finding the Fourth Proportional to 1,129,841.51, 1,559,175.95 and 613,591.79
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Solution
The fourth proportional to 1,129,841.51, 1,559,175.95 and 613,591.79 is: 846,753.77
Step by Step Solution
- Step 1: Write the proportion equation
1,129,841.51 : 1,559,175.95 = 613,591.79 : x - Step 2: Convert to fraction form
1,129,841.51/1,559,175.95 = 613,591.79/x - Step 3: Cross multiply
1,129,841.51x = 1,559,175.95 × 613,591.79 - Step 4: Simplify right side
1,129,841.51x = 956,697,555,823.55 - Step 5: Solve for x
x = 956,697,555,823.55/1,129,841.51 - Step 6: Final answer
x = 846,753.77
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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.