Finding the Fourth Proportional to 1,245,569.68, 1,719,013.12 and 762,454.08
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Solution
The fourth proportional to 1,245,569.68, 1,719,013.12 and 762,454.08 is: 1,052,264.35
Step by Step Solution
- Step 1: Write the proportion equation
1,245,569.68 : 1,719,013.12 = 762,454.08 : x - Step 2: Convert to fraction form
1,245,569.68/1,719,013.12 = 762,454.08/x - Step 3: Cross multiply
1,245,569.68x = 1,719,013.12 × 762,454.08 - Step 4: Simplify right side
1,245,569.68x = 1,310,668,566,917.53 - Step 5: Solve for x
x = 1,310,668,566,917.53/1,245,569.68 - Step 6: Final answer
x = 1,052,264.35
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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.