Finding the Fourth Proportional to 1,281,562.77, 1,768,485.96 and 708,565.14
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Solution
The fourth proportional to 1,281,562.77, 1,768,485.96 and 708,565.14 is: 977,780.82
Step by Step Solution
- Step 1: Write the proportion equation
1,281,562.77 : 1,768,485.96 = 708,565.14 : x - Step 2: Convert to fraction form
1,281,562.77/1,768,485.96 = 708,565.14/x - Step 3: Cross multiply
1,281,562.77x = 1,768,485.96 × 708,565.14 - Step 4: Simplify right side
1,281,562.77x = 1,253,087,501,835.43 - Step 5: Solve for x
x = 1,253,087,501,835.43/1,281,562.77 - Step 6: Final answer
x = 977,780.82
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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.