Finding the Fourth Proportional to 1,281,342.54, 1,768,289.61 and 708,419.62
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Solution
The fourth proportional to 1,281,342.54, 1,768,289.61 and 708,419.62 is: 977,639.48
Step by Step Solution
- Step 1: Write the proportion equation
1,281,342.54 : 1,768,289.61 = 708,419.62 : x - Step 2: Convert to fraction form
1,281,342.54/1,768,289.61 = 708,419.62/x - Step 3: Cross multiply
1,281,342.54x = 1,768,289.61 × 708,419.62 - Step 4: Simplify right side
1,281,342.54x = 1,252,691,053,566.15 - Step 5: Solve for x
x = 1,252,691,053,566.15/1,281,342.54 - Step 6: Final answer
x = 977,639.48
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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.